Myers v. Board of Equalization , 192 Cal. Rptr. 3d 864 ( 2015 )


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  • Filed 9/25/15
    CERTIFIED FOR PUBLICATION
    IN THE COURT OF APPEAL OF THE STATE OF CALIFORNIA
    SECOND APPELLATE DISTRICT
    DIVISION THREE
    MICHAEL D. MYERS,                                    B255445
    Plaintiff and Appellant,                     (Los Angeles County
    Super. Ct. No. BS143436)
    v.
    STATE BOARD OF EQUALIZATION
    et al.,
    Defendants and Respondents.
    CALIFORNIA PHYSICIANS’ SERVICE
    et al.,
    Real Parties in Interest and
    Respondents.
    APPEAL from a judgment of the Superior Court of Los Angeles County,
    Jane L. Johnson, Judge. Reversed.
    Ajalat, Polley, Ayoob & Matarese and Richard J. Ayoob; Gianelli & Morris,
    Robert S. Gianelli and Timothy J. Morris for Plaintiff and Appellant.
    Adam M. Cole and Teresa R. Campbell for Defendant and Respondent Dave
    Jones, California Insurance Commissioner.
    Hogan Lovells, Vanessa O. Wells, Victoria C. Brown and Rachel A. Patta for
    Real Party in Interest and Respondent Blue Cross of California.
    Manatt, Phelps & Phillips, Gregory N. Pimstone, Ronald B. Turovsky and
    Joanna S. McCallum for Real Party in Interest and Respondent California Physicians’
    Service.
    Carol L. Ventura, Drew Brereton, and Sheila F. Gonzalez, for California
    Department of Managed Health Care as Amicus Curiae on behalf of Real Parties in
    Interest and Respondents California Managed Health Care and Blue Cross of California.
    _______________________________________
    INTRODUCTION
    Article XIII, section 28 of the California Constitution imposes a tax of
    2.35 percent on the amount of gross premiums received each year by “each insurer
    doing business in this state” (Cal. Const., art. XIII, § 28, subd. (b), italics added; 
    id., subds. (c)
    & (d).) The tax differs from the corporate franchise tax imposed on all other
    businesses, which is calculated on the basis of the business’s “net income.” (Rev. &
    Tax. Code, § 23151, subd. (f), italics added.)
    The issue in this appeal is whether California Physicians’ Service, doing business
    as Blue Shield of California (Blue Shield), and Blue Cross of California, doing business
    as Anthem Blue Cross (Blue Cross; collectively, Real Parties) are “insurers” under the
    California Constitution’s gross premium tax provision.
    A taxpayer brought a mandamus action to compel state officials to collect the
    gross premium tax from Real Parties. Real Parties contended, inter alia, they could not,
    as a matter of law, be regarded as “insurers” under the Constitution’s gross premium tax
    provision, because they are “health care service plans” under the Knox-Keene Health
    Care Service Plan Act of 1975, Health and Safety Code section 1340 et seq. (the Knox-
    2
    Keene Act). They argued that regulatory status determines if an entity is an “insurer”
    and subject to the gross premium tax under the Constitution. The trial court agreed with
    Real Parties and sustained their demurrers without leave to amend. We reverse, and
    conclude, pursuant to People ex rel. Roddis v. California Mut. Assn. (1968) 
    68 Cal. 2d 677
    (Roddis), that the taxpayer can maintain this action because the complaint alleges
    facts sufficient to support an inference that indemnifying against future contingent
    medical expenses represents a significant financial proportion of Real Parties’
    businesses.
    FACTS1 AND PROCEDURAL HISTORY
    Plaintiff Michael Myers filed this action against the State Board of Equalization
    (BOE), the State Insurance Commissioner, and the State Controller (collectively, the
    State Defendants), to compel the State Defendants to assess and collect the gross
    premium tax from Real Parties. Plaintiff alleges Real Parties are among the largest
    health “insurers” in this state by virtue of the significant premiums they collect in
    exchange for agreeing to indemnify their enrollees against contingent medical expenses,
    largely through Preferred Provider Organization, or PPO, plans. Despite this, Plaintiff
    alleges Real Parties have not paid the gross premium tax that is paid by every other
    company that issues similar fee-for-service indemnity health insurance contracts.
    The trial court sustained Real Parties’ demurrers to Plaintiff’s complaint on three
    grounds. As for the principal ground, which we address in the major part of this
    opinion, the court concluded that Real Parties could not, as a matter of law, be regarded
    as “insurers” under the Constitution’s gross premium tax provision, because they are
    “health care service plans” under the Knox-Keene Act and, as such, are subject to a
    different regulatory scheme than the one that governs the business of licensed insurance
    companies in this state. The court also concluded that Plaintiff’s action was barred,
    1
    “Because this matter comes to us on demurrer, we take the facts from
    [P]laintiff’s complaint, the allegations of which are deemed true for the limited purpose
    of determining whether [P]laintiff has stated a viable cause of action.” (Stevenson v.
    Superior Court (1997) 
    16 Cal. 4th 880
    , 885.)
    3
    under the res judicata doctrine, by a judgment in a prior taxpayer action to compel the
    BOE to assess and collect the gross premium tax from Blue Cross. Finally, the court
    determined that Plaintiff lacked standing because the requested relief would effectively
    enjoin the state from collecting the corporate franchise tax from Real Parties. For the
    reasons discussed in this opinion, we reject each of these grounds, and reverse the
    judgment.
    1.     Allegations Regarding Blue Shield
    The California Medical Association incorporated Blue Shield in 1939 as
    a not-for-profit mutual benefit corporation. Blue Shield’s founding purpose was to
    arrange health care for Californians with limited incomes, originally less than
    $3,000 per year, who did not have adequate funds to pay for medical treatment.
    In its early years, Blue Shield contracted directly with California physicians to
    provide covered medical services to Blue Shield subscribers for a set periodic rate.
    Under this original model, Blue Shield had no contractual obligation to indemnify its
    subscribers for medical expenses; rather, the financial risk of providing expensive
    medical care that exceeded the contracted rate fell entirely upon the treating physicians
    who had contracted with Blue Shield.
    Beginning in the 1960’s, Blue Shield expanded its membership and services by
    removing existing income restrictions and offering health care indemnity contracts that
    obligated Blue Shield to pay for its members’ medical treatment. At the time, state law
    only required Blue Shield to register with the California Attorney General as a Knox-
    Mills Act pre-paid health plan, even though the Knox-Mills Act lacked regulatory
    oversight mechanisms to ensure Blue Shield maintained sufficient reserves to meet its
    growing indemnity obligations.
    In 1975, the Legislature repealed the Knox-Mills Act and enacted the
    Knox-Keene Act. In 1978, the Department of Corporations designated Blue Shield a
    California Health Care Service Plan (HCSP)—one of four original licensees under the
    Knox-Keene Act. As a former Knox-Mills health plan, and in recognition that Blue
    Shield issued primarily health indemnity contracts, the Department of Corporations
    4
    permitted Blue Shield to continue to write new fee-for-service indemnity contracts as a
    HCSP, unlike the vast majority of other HCSPs licensed under the Knox-Keene Act.
    Blue Shield utilizes a form of indemnity-based health contract that allows
    members to obtain covered medical care from “preferred providers” at discounted group
    rates. Under this arrangement, the hospitals and physicians with whom Blue Shield
    contracts comprise Blue Shield’s Preferred Provider Organization (PPO). Blue Shield
    members who obtain medical care from preferred providers pay smaller out-of-pocket
    costs than for medical care received from non-preferred providers, while Blue Shield
    pays reduced fee-for-service rates for the medical care preferred providers render to
    Blue Shield members. Consistent with their indemnity structure, the PPO contracts
    provide that if Blue Shield pays for medical treatment stemming from injuries caused by
    a third party, then Blue Shield will retain “ ‘an equitable right to restitution’ ” to recover
    the medical costs “ ‘paid by Blue Shield of California on a fee-for-service basis.’ ”
    Over the last decades, Blue Shield has offered two broad product lines: PPO
    plans and Health Maintenance Organization (HMO) plans.2 As of June 2012, Blue
    Shield reported that 1,824,766 members were enrolled in its PPO plans across
    California. Blue Shield’s PPO membership is approximately twice that of the members
    2
    The complaint alleges Blue Shield’s HMO plans share some of the indemnity
    characteristics of its PPO plans. According to the complaint, under most of Blue
    Shield’s HMO plans, Blue Shield contracts with Independent Physician Associations
    and Medical Groups to provide certain, but not all, outpatient professional medical
    services. Unlike a traditional capitation arrangement—under which the contracted
    medical professional receives a fixed fee to provide all medical services to the HMO’s
    members during a covered period, thereby shouldering the risk that the cost of such
    services will exceed the agreed upon fee—the complaint alleges Blue Shield assumes
    a share of the financial risk of paying for medical services provided by the contracted
    Independent Physician Associations and Medical Groups. Further, since Blue Shield
    does not have capitation agreements with hospitals or pharmacies, the complaint alleges
    Blue Shield assumes all the financial risk of covering contingent hospital and
    pharmaceutical charges incurred by its HMO enrollees on a fee-for-service or per diem
    basis.
    5
    enrolled in its HMO plans. As of June 2012, Blue Shield’s PPO network consisted of
    53,710 physicians and 363 hospitals.
    PPO plans are customarily characterized as health insurance plans and, as such,
    are subject to oversight by the Department of Insurance. Like other PPO plans, Blue
    Shield’s PPO contracts are fee-for-service indemnity health contracts that place the
    financial risk of paying a member’s covered contingent medical care costs on Blue
    Shield, less the required deductible and co-insurance payment by the member. Despite
    this, while other PPO plans offered in California are subject to regulation by the
    Department of Insurance, Blue Shield’s PPO plans are overseen by the Department of
    Managed Health Care (DMHC)—Blue Shield’s regulator since 1999 under the Knox-
    Keene Act. In its Final Report of its Routine Medical Survey of Blue Shield of
    California, dated October 14, 2006, the DMHC disclosed that “[Blue Shield] was
    permitted the option to include its Preferred Provider Organization (PPO) products
    under the jurisdiction of the Department of Corporations, the state regulatory agency for
    the [Knox-Keene] Act at that time.”
    As of the filing of the complaint, Blue Shield had over 2.8 million enrollees for
    its PPO and HMO plans, representing the third highest enrollment of all health carriers
    in California and generating nearly $7 billion in annual premiums or “ ‘dues.’ ”
    In 2012, Blue Shield paid over $5.2 billion for non-capitated medical expenses,
    representing over three times the amount Blue Shield paid for capitated expenses
    ($1.7 billion). Figures set forth in the complaint suggest Blue Shield has paid at least
    two to three times more in fee-for-service medical expenses over the last decade as
    compared to charges paid under a capitation agreement.
    Since 1952, Blue Shield has been exempt from all state franchise tax, including
    the gross premiums tax, pursuant to findings made by the Franchise Tax Board (FTB)
    under former Revenue and Taxation Code section 23701.3 According to the FTB
    3
    Former Revenue and Taxation Code section 23701, like the current iteration of
    the statute, provides tax exempt status for certain qualifying nonprofit organizations.
    6
    opinion letter, Blue Shield’s tax-exempt status could be subject to forfeiture in the event
    “[Blue Shield] change[s] the character of [its] organization, the purposes for which [it]
    [was] organized, or [its] method of operation.”
    2.     Allegations Regarding Blue Cross
    Blue Cross was established in 1936 as a not-for-profit hospital service
    organization. In 1983, Blue Cross implemented one of the first PPO programs in
    California. Three years later, Blue Cross formed its first HMO plan. In 1996, Blue
    Cross changed its status to a “for profit” health plan.
    Blue Cross was regulated by the Department of Insurance until January 1983,
    when, through a series of legislative acts, it came under the jurisdiction of the
    Department of Corporations—the predecessor to Blue Cross’s current regulator under
    the Knox-Keene Act, the DMHC. The same legislative acts deemed Blue Cross a
    “grandfathered” Knox-Mills pre-paid health plan and enabled Blue Cross, like Blue
    Shield, to continue issuing health plans with an indemnity component even after the
    DMHC assumed regulatory jurisdiction.4
    Blue Cross PPO plans provide coverage for doctor office visits, hospital stays,
    emergency medical treatment, medical diagnostic services, outpatient services,
    prescription drugs and other medical benefits. The amounts Blue Cross pays under its
    PPO contracts are dependent upon coinsurance and deductable options and whether the
    medical care is provided by a Blue Cross “in-network” physician or a hospital that
    charges a lower “volume discount” rate negotiated by Blue Cross. Blue Cross PPO
    plans also provide coverage for more costly out-of-network medical treatment.
    4
    In support of this allegation, the complaint cites Health and Safety Code
    section 1396.5, which provides, “A nonprofit hospital corporation which substantially
    indemnified subscribers and enrollees and was operating in 1965 under Chapter 11A
    (commencing with Section 11490) of Part 2 of Division 2 of the Insurance Code and
    which is regulated under the Knox-Keene Health Care Service Plan Act shall enjoy the
    privileges under the act which would have been available to it had it been registered
    under the Knox-Mills Health Plan Act and applied for a license under the Knox-Keene
    Health Care Service Plan Act in 1976.” For purposes of reviewing the judgment, we
    will assume the statute applied to Blue Cross.
    7
    The complaint alleges on information and belief that Blue Cross issues more
    PPO plans in California than any other HCSP or insurance company in the state, and
    that more Blue Cross members receive benefits under its PPO products than its HMO
    products. The complaint also alleges on information and belief that Blue Cross, like
    Blue Shield, was given the option to have the Department of Corporations oversee its
    PPO plans, rather than the Department of Insurance, which oversees all other PPO
    health insurance plans issued in California.
    Blue Cross financial statements from 2002 through 2012 show Blue Cross’s
    annual fee-for-service payments on behalf of its members have been approximately five
    to six times larger than its pre-paid capitation payments to healthcare providers over the
    subject decade. In 2012, Blue Cross’s fee-for-service payments totaled more than
    $7.2 billion, as compared to the $1.8 billion in fixed fees it paid pursuant to capitation
    agreements with physicians and hospitals. Since 1983, when Blue Cross came under
    the jurisdiction of the Department of Corporations pursuant to the Knox-Keene Act,
    Blue Cross has not paid any gross premium taxes.
    3.     The 2004 Lawsuit
    In November 2004, the Foundation for Taxpayer and Consumer Rights (FTCR)
    and Shari Rosenman (collectively, the FTCR plaintiffs) filed a taxpayer action pursuant
    to Code of Civil Procedure section 526a5 against the BOE, the State Controller and the
    State of California. The complaint sought declaratory and injunctive relief to compel
    “the assessment and collection of hundreds of millions of dollars in unpaid gross
    premium taxes owed to the State of California by [Blue Cross] on the premiums it
    receives from its [PPO] health insurance plan subscribers” (the 2004 Lawsuit).
    5
    Code of Civil Procedure section 526a provides in relevant part: “An action to
    obtain a judgment, restraining and preventing any illegal expenditure of, waste of, or
    injury to, the estate, funds, or other property of a county, town, city or city and county
    of the state, may be maintained against any officer thereof, or any agent, or other
    person, acting in its behalf, either by a citizen resident therein, or by a corporation, who
    is assessed for and is liable to pay, or, within one year before the commencement of the
    action, has paid, a tax therein.”
    8
    The FTCR plaintiffs alleged the “PPO plans sold by Blue Cross are a type of
    indemnity health insurance” and that approximately 41 percent of Blue Cross’s health
    insurance business in California was attributable to its PPO products. At all relevant
    times, however, Blue Cross allegedly paid the franchise tax on its net profits, not the
    constitutionally-mandated gross premium tax paid by other health insurers selling PPO
    indemnity insurance products. This allegedly allowed Blue Cross to reap “an enormous
    competitive advantage” over other health insurers in California. As the FTCR plaintiffs
    asserted in their complaint, “[a]lthough the franchise tax rate of 8.83% is greater than
    the premium tax rate of 2.35%, because the base for the gross premium tax is gross
    premiums instead of net income, the gross premium tax collects a greater share of an
    insurance company[’s] premium revenue than is proportionally collected from a health
    plan by the franchise tax.” The FTCR plaintiffs maintained that the relief sought would
    “level the playing field for all California health insurers and result in a more competitive
    and fair environment for health care insurers.”
    The public entity defendants and Blue Cross, as a real party in interest, filed
    demurrers to the FTCR plaintiffs’ complaint. The demurrers argued (1) the plaintiffs
    lacked standing under Code of Civil Procedure section 526a because the relief sought
    would effectively enjoin the FTB from collecting the franchise tax from Blue Cross; and
    (2) the public entity defendants had no duty to collect the gross premium tax because
    Blue Cross was a HCSP under the Knox-Keene Act and, therefore, not an “insurer”
    under Article XIII, section 28 of the Constitution.
    The trial court sustained the demurrers without leave to amend. With respect to
    the constitutional issue, the court concluded Blue Cross was not an “insurer” under
    Article XIII, section 28. Citing the fact that “[i]nsurers are registered with and regulated
    by the Insurance Commissioner and Department of Insurance,” while Blue Cross had
    been licensed as a HCSP under the Knox-Keene Act since 1993, the court reasoned that
    the Legislature and relevant state agencies, including the Department of Insurance, the
    DMHC, and the FTB, had determined that Blue Cross was a health plan and not an
    insurer for tax purposes. Because, in the court’s view, these agencies made
    9
    “discretionary policy determinations” with respect to Blue Cross’s status, the court
    concluded such determinations were “not subject to judicial review by means of a
    taxpayer action.” Accordingly, the court held Blue Cross’s status as a licensed HCSP
    was dispositive and barred declaratory or injunctive relief compelling the public entity
    defendants to assess and collect the gross premium tax from Blue Cross.
    While acknowledging the demurring parties’ argument that the FTCR plaintiffs’
    action could not be maintained under Code of Civil Procedure section 526a because it
    would necessarily enjoin the FTB from collecting the franchise tax, the trial court
    applied a different analysis to the standing issue. The court reasoned that a taxpayer has
    standing under Code of Civil Procedure section 526a to compel the collection of a tax
    only if the subject public agencies have “nondiscretionary duties that required the
    collection of those funds.” Working from that premise, the court settled on the same
    rationale that it employed to resolve the constitutional issue--that is, because the
    relevant agencies made a discretionary policy determination to characterize Blue Cross
    as a HCSP, and HCSPs are not subject to the gross premium tax, the court concluded
    the FTCR plaintiffs had no standing to compel the public entity defendants to collect the
    gross premium tax.
    The FTCR plaintiffs appealed from the judgment, but then abandoned the appeal
    before submitting the case to the appellate court for a decision.
    4.     The Instant Action
    In July 2013, Plaintiff filed the instant action, styled as a verified
    petition/complaint for writ of mandamus and declaratory judgment, against the State
    Defendants. The complaint sought to compel the State Defendants to “perform their
    respective ministerial duties mandated by the California Constitution and Revenue and
    Taxation Code . . . regarding the determination, assessment, and collection of the gross
    premium tax” with respect to Real Parties. The complaint also sought a declaratory
    judgment determining “whether Blue Shield and Blue Cross are ‘insurers’ as that term
    is used within Article XIII, section 28 of the California Constitution.” Plaintiff asserted
    10
    he had standing to sue for the requested relief pursuant to Code of Civil Procedure
    section 526a.
    The complaint’s central theory for relief is that Real Parties’ PPO products are
    indemnity health insurance contracts and, because these indemnity products represent
    the vast majority of Real Parties’ business in the state, the complaint asserts Real Parties
    are “insurers” under the Constitution and the premiums they collect in California are
    subject to the gross premium tax. Despite this, the complaint alleges the State
    Defendants have failed to perform their ministerial duty to assess and collect the gross
    premium tax from Real Parties. That failure, the complaint asserts, “constitutes a waste
    of tax monies owed to the state warranting mandamus.”
    After the trial court related the instant action to the 2004 Lawsuit filed by the
    FTCR plaintiffs, the parties filed a joint initial status conference statement setting forth
    their respective positions on the core factual and legal issues presented by the
    complaint’s allegations. The BOE stated it had “no position” regarding Plaintiff’s
    entitlement to relief, observing that under the relevant Revenue and Taxation Code
    provision the BOE’s duty to assess the gross premium tax is “under the direction of the
    Department of Insurance and purely ministerial.” The Controller similarly stated that it
    “makes no determination as to whether entities, such as [Real Parties], are insurers for
    purposes of administering [the gross premium tax].” The Controller added, “This
    determination is made by the Insurance Commissioner.” As for the Insurance
    Commissioner, he stated: “The core legal issue is whether [Real Parties] are insurers
    11
    subject to gross premium tax under California Constitution article XIII, section 28. The
    Commissioner contends the answer is yes.”6
    Real Parties filed separate demurrers to the complaint. Both demurrers asserted
    the judgment in the 2004 Lawsuit barred the instant action under the res judicata
    doctrine and that, on the merits, Real Parties’ status as a licensed Knox-Keene HCSP
    regulated by the DMHC—not the Insurance Commissioner—conclusively established
    they were not “insurers” subject to the gross premium tax. Blue Cross also argued, as it
    had in the 2004 Lawsuit, that Plaintiff lacked standing under Code of Civil Procedure
    section 526a because the relief he sought would effectively enjoin the FTB from
    collecting franchise tax from Blue Cross. Blue Shield also challenged Plaintiff’s
    standing, but argued it was lacking with respect to the relief affecting Blue Shield
    because such relief—a writ of mandate compelling the State Defendants to collect gross
    premium taxes from Blue Shield—was inconsistent with Blue Shield’s tax-exempt
    status.
    Plaintiff opposed the demurrers, arguing, among other things, that (1) the
    requisite elements of res judicata were not present, but even if they were, the court
    should invoke the doctrine’s public interest exception in view of the public revenue
    component and constitutional dimension of the claims; (2) the Real Parties’ regulatory
    designation under the Knox-Keene Act could not trump the State Defendants’
    constitutionally-mandated ministerial duty to collect the gross premium tax from entities
    substantially engaged in the business of selling indemnity insurance in California; and
    6
    The BOE and Controller each filed answers reaffirming that their ministerial
    duties with respect to assessing the gross premium tax were dictated by the Insurance
    Commissioner. The Insurance Commissioner stated in his answer that Article III,
    section 3.5 of the Constitution precludes him from declaring a statute unenforceable or
    refusing to enforce a statute on the basis of it being unconstitutional without an
    appellate court determination. Accordingly, the Insurance Commissioner stated he must
    give deference to the relevant provisions of the Insurance Code and Health and Safety
    Code deeming Real Parties to be HCSPs. He added, however, that he “contends those
    statutes are unconstitutional to the extent they immunize [Real Parties] from premium
    tax.”
    12
    (3) Real Parties’ standing arguments were based on flawed interpretations of the
    relevant legal authorities.
    The trial court sustained Real Parties’ demurrers without leave to amend. The
    court determined that all elements for invoking res judicata were present and declined to
    apply the public interest exception, observing “this case deals with questions of
    economic public policy [that] do not lie within this Court’s prerogative.” The court also
    determined that Real Parties’ regulatory designation under the Knox-Keene Act was
    dispositive and precluded a finding that Real Parties were “insurers” subject to the gross
    premium tax under the Constitution. Finally, the court concluded Plaintiff lacked
    standing under Code of Civil Procedure section 526a, reasoning that the gross premium
    tax is “ ‘in lieu of’ ” other taxes and, therefore, the relief requested by Plaintiff would
    “ ‘inherently enjoin collection of the corporate franchise tax paid by Blue Cross.’ ”
    DISCUSSION
    1.     Taxation of Insurance Companies in California
    Before we address the issues in this case, we must place this matter in context by
    examining the specific taxing scheme for insurers that lies at the heart of this
    controversy. In California, insurance companies are taxed differently than other
    corporations doing business in the state. While regular corporations are subject to
    a corporate franchise tax of 8.84 percent, calculated on the basis of the corporation’s
    “net income” (Rev. & Tax. Code, § 23151, subd. (f), italics added),7 the California
    Constitution imposes a tax of 2.35 percent on the amount of gross premiums received
    each year by “each insurer doing business in this state” (Cal. Const., art. XIII, § 28,
    subd. (b), italics added; 
    id., subds. (c)
    & (d).) For most types of insurers, this tax is in
    lieu of all other taxes and fees payable to the state, except property taxes and vehicle
    license fees. (Id., subd. (f).) Thus, insurance companies do not pay tax on other forms
    of income, such as investment income, and income earned from other trades or
    7
    Banks and financial corporations, and Subchapter S corporations, are subject to
    different tax rates on their net income. (See Rev. & Tax. Code, §§ 23186, 23802.)
    13
    businesses. (See Mutual Life Ins. Co. v. City of Los Angeles (1990) 
    50 Cal. 3d 402
    , 410
    [“the ‘in lieu’ provision was intended to preclude the state or any of its subdivisions
    from exacting any other revenue from the specified corporations (except local taxes on
    real estate) and was granted in exchange for the payment of a tax on gross, rather than
    net, premiums, and at an adjustable rate higher than would otherwise be applied”].)
    A July 2008 report by the Legislative Analyst’s Office observes that “[t]he
    economics of the insurance industry is a key reason for the special treatment of
    insurance companies” with respect to taxation in California. The report explains the
    rationale as follows: “Most [corporate franchise tax] taxpayers calculate their income
    by subtracting costs incurred in the production of a good or service from the revenues
    received from their sale. Insurance companies, by contrast, collect their revenues up
    front [in the form of premiums], then make payments to policyholders based on
    contingent events that occur many months or years later. Thus, it can be difficult to
    ‘match up’ revenues to related expenses. In an income tax framework, insurers ideally
    would be allowed to deduct the current value of all future obligations (claims) covered
    by the insurance policies they have written when calculating their taxable income for a
    given year. [However,] [b]ecause the actual amount of these obligations is uncertain, as
    are the amount of investment earnings on accumulated premiums received during the
    intervening period, an accurate determination of the theoretically appropriate amount of
    taxable income proves very difficult to achieve in practice.” “For this reason,” the
    Legislative Analyst’s Office report concludes, “a [gross] premiums tax was adopted.”
    2.     Knox-Keene Licensed Health Care Service Plans
    The other leg of this controversy concerns the regulatory regime applicable to
    licensed HCSPs under the Knox-Keene Act. Again, some background in this area is
    necessary to put our resolution of the parties’ opposing positions in context.
    In 1975, the Legislature adopted the Knox-Keene Act with the express intent and
    purpose to “promote the delivery and the quality of health and medical care to the
    people of the State of California who enroll in, or subscribe for the services rendered by,
    a [HCSP] by accomplishing all of the following: [¶] (a) Ensuring the continued role of
    14
    the professional as the determiner of the patient’s health needs . . . . [¶] (b) Ensuring
    that subscribers and enrollees are educated and informed of the benefits and services
    available . . . . [¶] (c) Prosecuting malefactors who make fraudulent solicitations or who
    use deceptive methods . . . . [¶] (d) Helping to ensure the best possible health care for
    the public at the lowest possible cost by transferring the financial risk of health care
    from patients to providers. [¶] (e) Promoting effective representation of the interests of
    subscribers and enrollees. [¶] (f) Ensuring the financial stability thereof by means of
    proper regulatory procedures. [¶] (g) Ensuring that subscribers and enrollees receive
    available and accessible health and medical services rendered in a manner providing
    continuity of care. [¶] (h) Ensuring that subscribers and enrollees have their grievances
    expeditiously and thoroughly reviewed by the [DMHC].” (Health & Saf. Code,
    § 1342.)
    In relevant part, the Knox-Keene Act defines those HCSPs that are subject to the
    law’s regulations as “Any person who undertakes to arrange for the provision of health
    care services to subscribers or enrollees, or to pay for or to reimburse any part of the
    cost for those services, in return for a prepaid or periodic charge paid by or on behalf of
    the subscribers or enrollees.” (Health & Saf. Code, § 1345, subd. (f).) HCSPs as
    defined in and regulated by the Knox-Keene Act are under the jurisdiction of the
    DMHC. (Health & Saf. Code, § 1341.) Though such entities are authorized to provide
    direct payment or reimbursement coverage for their enrollees’ medical expenses,
    HCSP’s are statutorily exempted from the Insurance Department’s jurisdiction, and are
    not subject the Insurance Code’s regulations. (Ins. Code, § 740, subd. (g).) This
    exemption extends to HCSPs offering fee-for-service coverage through a PPO plan.
    (Id., § 742.)
    Finally, because HCSPs include, by definition, entities that agree to “pay for or
    to reimburse” enrollees for the cost of medical services in exchange for a “prepaid or
    periodic charge” (Health & Saf. Code, § 1345, subd. (f)(1)), the Knox-Keene Act
    includes capitalization requirements and vests financial oversight authority in the
    DMHC. (Id., §§ 1376, 1377, & 1399, subd. (c).)
    15
    3.     The Complaint Alleges Sufficient Facts to Find Real Parties Are
    “Insurers” under the Gross Premium Tax Provision of the Constitution
    With the forgoing background, we can distill the novel constitutional question
    presented by this appeal as follows: Are allegations that Real Parties receive a
    substantial share of their annual premiums in exchange for agreeing to indemnify
    enrollees against contingent medical expenses sufficient to state a claim that Real
    Parties are “insurer[s]” subject to the Constitution’s gross premium tax? We hold the
    answer is yes, because these allegations support an inference that indemnifying against
    future contingent claims represents a significant financial proportion of Real Parties’
    businesses as balanced against the health care service aspect of their businesses.
    Accordingly, we conclude the trial court erred in sustaining Real Parties’ demurrers.
    To reiterate, the Constitution imposes the gross premiums tax on “each insurer
    doing business in this state” (Cal. Const., art. XIII, § 28, subd. (b), italics added; 
    id., subds. (c)
    & (d).) In relevant part, the Constitution defines the term “ ‘Insurer’ ” to
    “include[ ] insurance companies or associations and reciprocal or interinsurance
    exchanges.” (Cal. Const., art XIII, subd. (a).) The definition, by its use of the word
    “includes,” is not restrictive, and our Supreme Court has looked outside the
    Constitution, to definitions provided by the Insurance Code, for guidance in assessing
    the scope of the gross premium tax provision. (See, e.g., Metropolitan Life Ins. Co. v.
    State Bd. of Equalization (1982) 
    32 Cal. 3d 649
    , 654 (Metropolitan Life); Title Ins. Co.
    v. State Bd. of Equalization (1992) 
    4 Cal. 4th 715
    , 725.)
    16
    As the court observed in Metropolitan Life, “[t]he Legislature has defined
    insurance as ‘a contract whereby one undertakes to indemnify another against loss,
    damage, or liability arising from a contingent or unknown event.’ ” (Metropolitan 
    Life, supra
    , 32 Cal.3d at p. 654, quoting Ins. Code, § 22.) “The person who undertakes to
    indemnify another by insurance is the insurer, and the person indemnified is the
    insured.” (Ins. Code, § 23; see Metropolitan Life, at p. 654.) Under these definitions,
    “insurance necessarily involves two elements: (1) a risk of loss to which one party is
    subject and a shifting of that risk to another party; and (2) distribution of risk among
    similarly situated persons.” (Metropolitan Life, at p. 654, citing California Physicians’
    Service v. Garrison (1946) 
    28 Cal. 2d 790
    , 803-804.)
    Plaintiff contends the complaint’s allegations demonstrate that Real Parties are
    “insurers” under the Constitution’s gross premium tax provision, notwithstanding that
    Real Parties are statutorily designated as HCSPs for regulatory purposes. In support of
    this contention, Plaintiff relies upon our Supreme Court’s opinion in Metropolitan Life.
    There, the court recognized that the gross premium tax’s purpose is to “exact payments
    from insurers doing business in California” by “approximat[ing] the volume of business
    done in this state, and thus the extent to which insurers have availed themselves of the
    privilege of doing business in California.” (Metropolitan 
    Life, supra
    , 32 Cal.3d at
    p. 656.) And, for this purpose, the Supreme Court stressed that we must “look beyond
    the formal labels the parties have affixed to their transactions and seek, rather, to discern
    the true economic substance” of the arrangement. (Id. at pp. 656-657.)
    As for the complaint’s allegations, Plaintiff emphasizes that Real Parties receive
    a substantial portion of their premiums each year in exchange for agreeing to indemnify
    their enrollees against a risk of loss occasioned by contingent medical expenses, and in
    doing so, Real Parties’ contracts effectively spread the financial risk posed by those
    contingent medical events among the millions of Californians who pay premiums to
    enroll in Real Parties’ PPO plans. Specifically, the complaint alleges Blue Shield paid
    over $5.2 billion for indemnity claims in 2012, as compared to $1.7 billion for non-
    indemnity based claims, and Blue Cross paid over $7.2 billion for indemnity claims, as
    17
    compared to $1.8 billion for non-indemnity based claims. Plaintiff contends application
    of the gross premium tax must be determined by examining Real Parties’ “business
    activity” in the state—not simply their regulatory status—and the complaint’s
    allegations support the claim that Real Parties operate as “insurers” for purposes of
    imposing the Constitution’s gross premium tax.
    Plaintiff contends this is a factual issue, which the trial court improperly resolved
    on demurrer by drawing unwarranted inferences from Real Parties’ regulatory
    obligations. Rather than resolve the issue based solely on regulatory status, Plaintiff
    argues the trial court should have applied the test set forth in Roddis to assess whether
    the complaint’s allegations concerning Real Parties’ business activities supported the
    claim that they are “insurers” under the Constitution’s gross premium tax provision.
    Because Roddis supplies a legal standard against which Plaintiff’s allegations may be
    measured, we will review the case in some depth.
    In Roddis, the Insurance Commissioner brought suit to restrain California Mutual
    Association (CMA) from “carrying on business as an insurer without first securing
    a certificate of authority pursuant to Insurance Code section 700.” 
    (Roddis, supra
    ,
    68 Cal.2d at p. 678.) CMA, which contracted with doctors who agreed to render
    services to CMA’s dues paying members and to look exclusively to CMA for payment
    of a scheduled fee (id. at pp. 678-679.), claimed it was a “health care service plan”
    under the Knox-Mills Act—the predecessor to Knox-Keene. The Roddis court
    explained: “If CMA is an insurer then it is subject to the supervision of the Insurance
    Commissioner and it must provide paid-in capital (Ins. Code, § 700.01), and a surplus
    (Ins. Code, § 700.02) and pay premium taxes. If, as CMA contends, it is a ‘health care
    service plan’ pursuant to the Knox-Mills Plan Act (Gov. Code, §§ 12530-12539), then it
    is subject to the supervision of the Attorney General and need not meet any statutory
    financial responsibility requirements,” as no provisions existed in the Knox-Mills Act to
    assure the financial solvency of health care service plans. (Roddis, at p. 679.)
    18
    The Roddis court began its analysis with the Knox-Mills Act’s statutory
    language, which defined “a ‘health care service plan’ as any organization ‘whereby any
    person undertakes responsibility to provide, arrange for, pay for or reimburse any part
    of the cost of any health care service for a consideration consisting in part of prepaid or
    periodic charges; but the provisions of this article shall not apply to such a plan operated
    by an insurer. . . .’ ” 
    (Roddis, supra
    , 68 Cal.2d at p. 680.) While the Knox-Mills Act
    did not define the term “insurer,” the court noted “[i]nsurance necessarily involves the
    element of indemnity.” (Ibid.) Thus, the court reasoned, the extent of indemnity
    offered by the entity represented the critical dividing line between whether an entity was
    a “health care service plan” or “insurer” under the Knox-Mills Act. As the court
    explained, “The [Knox-Mills Act] permits a health care service plan to ‘reimburse’
    a member and thus indicates that service plans may include some indemnity features,
    but by excluding an ‘insurer’ from the definition of a ‘health care service plan’ the
    Legislature has evinced an intention to limit the extent of indemnity features
    permissible. It is this limit we must now determine.” (Id. at p. 681.)
    To determine this limit (and thus ascertain the proper regulatory characterization
    of an entity claiming to be a Knox-Mills health care service plan) the Roddis court
    observed “two policy considerations” must drive the analysis. 
    (Roddis, supra
    ,
    68 Cal.2d at p. 682.) First, the court explained, “[w]here indemnity features are present,
    the member bears the risk of personal liability for medical services. This is the
    insurance risk which can be protected against by financial reserves to assure that the
    member will receive the benefits for which he has paid.” (Ibid.) As for the second
    consideration, the court emphasized, “there is a strong social policy to encourage the
    services which health plans provide the public,” and the Insurance Code’s financial
    reserve requirements should not inhibit the development of health plans to meet that
    need. (Id. at pp. 682-683.)
    19
    Cognizant of these two policies, the Roddis court concluded that “where
    indemnity is a significant financial proportion of the business, the organization must be
    classified as an ‘insurer’ for the purposes of the Knox-Mills Plan Act.” 
    (Roddis, supra
    ,
    68 Cal.2d at p. 683.) The court acknowledged that “this determination involves
    balancing the indemnity aspects against the direct service aspects of the business,” and
    admonished that “only in the context of the plan as a whole can it be determined
    whether the indemnity feature is so significant as to warrant imposing the Insurance
    Code financial reserve requirements.” (Ibid.) In that regard, the court emphasized,
    “[h]ealth care service plans were given special legislative treatment because of the
    direct service feature. Only so long as the plans pursue and achieve that objective is the
    public assured that the protection of the Insurance Code is not necessary.” (Ibid.)
    We conclude Roddis provides the appropriate standard for determining whether
    an entity should be regarded as an “insurer” for purposes of assessing the gross
    premium tax under article XIII, section 28 of the Constitution. We acknowledge the
    critical role that financial solvency concerns played in the Supreme Court’s formulation
    of the Roddis test; however, for purposes of assessing whether an entity is an “insurer”
    under the Constitution’s gross premium tax provision, we regard this as a distinction
    without difference. In Roddis, the court’s concern over financial solvency stemmed
    from the fact that CMA had promised to pay for future contingent medical expenses, yet
    its ultimate liability for such expenses was unknown at the time it collected dues from
    its covered members. The same concern supported adoption of the gross premium tax.
    According to the Legislative Analyst’s Office, the economics of insurance indemnity
    arrangements—that is, the fact that insurers receive premiums up front, without
    knowing what related expenses will be paid on those premiums in the future, thereby
    rendering them unable to determine the net profits attributable to those premiums at the
    end of the tax year—was the “key reason” for adopting the gross premium tax. The
    Roddis test, which focuses on whether “indemnity is a significant financial proportion
    of the business” 
    (Roddis, supra
    , 68 Cal.2d at p. 683), is suitably calibrated to this unique
    aspect of the insurance industry.
    20
    Further, in Metropolitan Life our Supreme Court observed that the gross
    premium tax’s purpose is to “exact payments from insurers doing business in
    California” by “approximat[ing] the volume of business done in this state, and thus the
    extent to which insurers have availed themselves of the privilege of doing business in
    California.” (Metropolitan 
    Life, supra
    , 32 Cal.3d at p. 656.) For this purpose, the court
    mandated that we “look beyond the formal labels the parties have affixed to their
    transactions and seek, rather, to discern the true economic substance” of the
    arrangement. (Id. at pp. 656-657.) Thus, contrary to Real Parties’ contention, it is not
    determinative that Real Parties are designated as HCSPs for regulatory purposes. Under
    Metropolitan Life, the court must look beyond this regulatory label to the true economic
    substance of Real Parties’ business operations to determine whether those operations are
    such that the gross premium tax best approximates the extent to which Real Parties have
    availed themselves of the privilege of doing business in California. Insofar as the
    complaint alleges Real Parties’ business operations consist predominately of selling and
    administering indemnity based health insurance policies, it is reasonable to conclude
    that the gross premium tax best captures the volume of business Real Parties conduct in
    this state, notwithstanding their regulator labels.
    As discussed, the underlying reason for this state’s adoption of the gross
    premium tax was to simplify the taxation of insurance companies that, in contrast to
    other businesses, have difficulty calculating their net profits in a given tax year because
    they collect revenues up front in the form of premiums, then make indemnity payments
    to policyholders based on contingent events that occur many months or years later. The
    complaint’s allegations support a reasonable inference that Real Parties’ business
    operations raise similar difficulties with respect to taxation of their net profits—that is,
    under Real Parties’ PPO policies they collect premiums up front, but do not make
    payments on the policies unless and until a contingent medical event occurs. Thus,
    because a significant financial portion of Real Parties’ business operations allegedly
    consist of indemnity contracts, the underlying rationale for applying the gross premium
    tax to other insurance companies applies equally to Blue Cross and Blue Shield.
    21
    Guided by Roddis, Metropolitan Life, and the underlying purpose of the gross
    premium tax, we conclude the complaint’s allegations concerning the proportion of
    annual payments Real Parties made pursuant to their PPO plans are sufficient to support
    the requested mandamus relief. The complaint alleges Blue Shield paid over $5.2
    billion for indemnity based medical expenses in 2012, as compared to $1.7 billion for
    non-indemnity based expenses. Similarly, the complaint alleges Blue Cross paid over
    $7.2 billion for indemnity based medical expenses in 2012, as compared to $1.8 billion
    for non-indemnity expenses. Under the Roddis test, Plaintiff has adequately stated a
    claim that Real Parties should be regarded as “insurers” for the purpose of assessing the
    gross premium tax. The trial court erred in sustaining Real Parties’ demurrers on this
    basis.
    4.     The Public Interest Exception to Res Judicata Applies
    Having resolved the novel constitutional issue, we turn to the trial court’s other
    grounds for sustaining Real Parties’ demurrers. As an independent ground for
    sustaining Real Parties’ demurrers, the trial court found that the judgment in the 2004
    Lawsuit by the FTCR plaintiffs barred the instant action under the doctrine of res
    judicata. Plaintiff maintains that the elements for imposing the res judicata bar are not
    present, but even if they were, he should be allowed to maintain this action under the
    doctrine’s public interest exception. We agree that the exception applies.
    In City of Sacramento v. State of California (1990) 
    50 Cal. 3d 51
    , our Supreme
    Court formulated the public interest exception as follows: “ ‘[W]hen the issue is
    a question of law rather than of fact, the prior determination is not conclusive either if
    injustice would result or if the public interest requires that relitigation not be foreclosed.
    [Citations.] . . . .’ ” (Id. at p. 64.) The City of Sacramento court concluded that the
    public interest exception applied to allow relitigation of an issue concerning whether
    costs expended by local governments for mandatory unemployment coverage must be
    reimbursed by the state pursuant to article XIII B of the Constitution. (City of
    Sacramento, at pp. 57, 64-65.) In applying the exception, the court emphasized that
    “[w]hether [such] costs are reimbursable under article XIII B . . . constitutes a pure
    22
    question of law” and, because the issue concerned public finances, “the consequences of
    any error transcend those which would apply to mere private parties.” (City of
    Sacramento, at p. 64.) Under those circumstances, the court held res judicata could not
    be invoked to “permanently foreclose” the court from examining the issue. (Id. at
    p. 65.)
    In Arcadia Unified School Dist. v. State Dept. of Education (1992) 
    2 Cal. 4th 251
    ,
    the Supreme Court applied the public interest exception to permit a second lawsuit
    regarding the constitutionality of a state statute permitting school districts to charge
    students for transportation. (Id. at pp. 256-259.) Among the considerations that
    compelled application of the exception, the court cited the fact that it ordered the
    appellate decision in the prior action depublished, which fostered “demonstrable
    uncertainty” about the statute’s validity. (Id. at p. 257.) And, as a practical matter, the
    court observed applying the res judicata bar would mean the constitutionality of the
    statute would never again be litigated, in which case “there would be no opportunity for
    anyone ever to challenge the legal grounds of the unpublished ruling.” (Id. at p. 258.)
    Stressing that the matter involved “a pure question of law,” which “affects the public in
    general,” the court held the public interest exception applied. (Id. at p. 259.)
    As in City of Sacramento and Arcadia Unified School Dist., the trial court in the
    2004 Lawsuit determined the applicability of the Constitution’s gross premium tax as
    a pure question of law. Also like those cases, the prior determination concerned
    a matter affecting public finances and, by extension, the interests of the public at large.
    The payment of taxes is always important to the public welfare; indeed, it is vital to the
    existence of the public services government provides. (See State Bd. of Equalization v.
    Superior Court (1985) 
    39 Cal. 3d 633
    , 639.) Were the trial court’s prior decision to act
    as a bar to future taxpayer suits, there would be no appellate guidance for the relevant
    state agencies concerning this important fiscal issue. For these reasons, we conclude the
    public interest exception applies.
    23
    5.     The Action Does Not Enjoin the Collection of Tax
    Lastly, in sustaining Real Parties’ demurrers, the trial court reasoned that the
    relief requested by Plaintiff would necessarily enjoin the state from collecting the
    corporate franchise tax from Real Parties, because the gross premium tax is imposed on
    insurers “in lieu of” the corporate franchise tax. (Cal. Const., art. XIII, § 28, subd. (f).)
    And, because an action to enjoin the collection of taxes is barred by the Constitution,
    the court concluded Plaintiff lacked standing to pursue such relief under Code of Civil
    Procedure section 526a. The ruling misapprehends the relevant authorities.
    Code of Civil Procedure section 526a authorizes a taxpayer to bring an action
    against public officers to “obtain a judgment, restraining and preventing any illegal
    expenditure of, waste of, or injury to, the estate, funds, or other property of a county,
    town, city or city and county of the state.” While the statutory language refers to
    a prohibitory injunction, it is well-settled that taxpayers have standing under
    section 526a to seek mandamus relief to compel government officials to comply with
    a mandatory duty. As the court stated in Vasquez v. State of California (2003)
    
    105 Cal. App. 4th 849
    (Vasquez), “It is established that an action lies under section 526a
    not only to enjoin wasteful expenditures, but also to enforce the government’s duty to
    collect funds due the State.” (Vasquez, at p. 854.)
    Article XIII, section 32, of the Constitution, provides: “No legal or equitable
    process shall issue in any proceeding in any court against this State or any officer
    thereof to prevent or enjoin the collection of any tax. After payment of a tax claimed to
    be illegal, an action may be maintained to recover the tax paid, with interest, in such
    manner as may be provided by the Legislature.” Thus, under the Constitution, a
    taxpayer is not permitted to pursue an action to enjoin an allegedly illegally assessed tax
    (under Code of Civil Procedure section 526a or otherwise); rather, the taxpayer’s
    remedy is to pay the assessed tax and then commence an action for its refund. (See
    Pacific Gas & Electric Co. v. State Bd. of Equalization (1980) 
    27 Cal. 3d 277
    , 284.)
    “The policy behind [Article XIII, section 32, of the Constitution] is to allow revenue
    24
    collection to continue during litigation so that essential public services dependent on the
    funds are not unnecessarily interrupted.” (Id. at p. 283.)
    As noted, Code of Civil Procedure section 526a authorizes a taxpayer action to
    “enforce the government’s duty to collect funds due the State.” 
    (Vasquez, supra
    ,
    105 Cal.App.4th at p. 854.) Plaintiff’s action seeks mandamus relief to command the
    State Defendants to assess and collect the gross premium tax from Real Parties, it does
    not seek to enjoin the state from collecting any other taxes or fees. Whatever effect the
    “in lieu of” clause of the gross premium tax provision has on the corporate franchise
    taxes the state has previously collected from Real Parties is a matter for Real Parties to
    raise in a subsequent tax refund action. It has no effect on Plaintiff’s standing under
    Code of Civil Procedure section 526a to prosecute the current action.
    25
    DISPOSITION
    The judgment is reversed and the order sustaining Real Parties’ demurrers is
    vacated. Plaintiff Michael D. Myers is entitled to costs.
    CERTIFIED FOR PUBLICATION
    KITCHING, Acting P. J.
    We concur:
    ALDRICH, J.
    JONES, J.*
    *
    Judge of the Los Angeles Superior Court, assigned by the Chief Justice pursuant
    to article VI, section 6 of the California Constitution.
    26