Kraft Foods, Inc., and Indemnity Insurance Co., N.A. v. Yusuf Shariff ( 2016 )


Menu:
  •                     IN THE COURT OF APPEALS OF IOWA
    No. 15-0287
    Filed February 24, 2016
    KRAFT FOODS, INC., and
    INDEMNITY INSURANCE CO., N.A.,
    Petitioners-Appellants,
    vs.
    YUSUF SHARIFF,
    Respondent-Appellee.
    ________________________________________________________________
    Appeal from the Iowa District Court for Polk County, Richard G. Blane II,
    Judge.
    An employer challenges a judicial-review decision affirming the workers’
    compensation commissioner’s grant of temporary disability benefits and alternate
    medical care to the claimant. AFFIRMED.
    Peter J. Thill and Jordan A. Kaplan of Betty, Neuman & McMahon, P.L.C.,
    Davenport, for appellants.
    William J. Bribriesco, Anthony J. Bribriesco, and Andrew W. Bribriesco of
    William J. Bribriesco & Associates, Bettendorf, for appellee.
    Considered by Potterfield, P.J., and Doyle and Tabor, JJ. Blane, S.J.,
    takes no part.
    2
    TABOR, Judge.
    Employer Kraft Foods, Inc., and its insurance company, challenge the
    award of benefits to Yusuf Shariff for injuries he sustained in a work-related
    motor vehicle accident. Kraft contends the district court erred in concluding the
    workers’ compensation commissioner’s medical-causation finding was supported
    by substantial evidence under Iowa Code section 17A.19(10)(f)(3) (2013). Kraft
    emphasizes the commissioner’s reversal of the deputy’s arbitration decision that
    discounted Shariff’s claims, but found the testimony of the employer’s on-site
    physician to be credible.
    Even considering the deputy’s veracity determinations, the record viewed
    as a whole supports the agency’s final action. Accordingly, like the district court,
    we find substantial evidence supporting the commissioner’s ruling and affirm.
    I.    Facts and Prior Proceedings
    Shariff started working for Kraft in 1999 and held various production
    positions in the Davenport plant until 2004. That year, he received a promotion
    to unit safety coordinator, serving as a liaison between workers and management
    on safety devices, ergonomics, and issues under the Occupational Safety and
    Health Act (OSHA). Shariff was reappointed to that position every two years until
    November 2010, when he declined to continue as safety coordinator but agreed
    to stay on until Kraft found and trained his replacement.
    As the unit safety coordinator, on February 23, 2011, Shariff was driving a
    coworker back from a medical appointment in a Kraft vehicle when they were
    rear-ended by another vehicle while stopped at a red light.        Shariff recalled
    3
    striking his head on the steering wheel and momentarily losing consciousness.
    Shariff complained of pain immediately after the collision, according to the
    deposition of his passenger, Alejandro Lopez. Lopez considered the accident to
    be serious because the work vehicle was a total loss.
    An ambulance transported Shariff to the hospital, where medical
    personnel took x-rays of his chest, cervical spine, and left knee, and performed a
    CT (computed tomography) scan of his head.           Dr. Daniel Knight diagnosed
    Shariff with a head injury and abrasion, cervical sprain, and contusions. Dr.
    Knight prescribed Motrin and Vicodin and discharged Shariff.
    The next day, February 24, Shariff was evaluated by Dr. Rick Garrels, who
    is board certified in occupational medicine and who provided medical services at
    the Kraft plant. According to Dr. Garrels’s notes, Shariff likely struck his head on
    the steering wheel and briefly lost consciousness as a result of the collision.
    After examining Shariff, Dr. Garrels diagnosed him with a closed-head injury,
    right cervical and shoulder pain, low back pain, and left knee pain. Dr. Garrels
    recommended Shariff take time off work and treat his injuries with “ice, rest,
    baclofen, tramadol, and prednisone.” Shariff returned to Dr. Garrels four days
    later with complaints of low back and shoulder pain, headaches, nausea, and
    dizziness.   Dr. Garrels recognized signs of a concussion and recommended
    imaging studies and physical therapy.
    In early March 2011, Shariff saw radiologists for MRI (magnetic resonance
    imaging) of his brain, cervical, lumbar spine, and right shoulder. The brain and
    cervical images revealed no abnormal results. Dr. Raymond Harre reviewed the
    4
    lower-back images, finding degenerative changes in the discs at L5-S1, L4-5,
    and L3-4. Dr. Harre detected lumbar facet spondylosis with mild lateral recess
    stenosis bilaterally at L4-5. Regarding the right shoulder, Dr. Harre diagnosed
    Shariff with mild acromioclavicular degenerative joint disease, a superior labrum
    anterior-posterior (SLAP) tear, and a partial thickness tear of the supraspinatus
    tendon with longitudinal extension.
    On March 10, 2011, Shariff reported back to Dr. Garrels, stating his
    headaches were lessening but he was experiencing some vertigo. Shariff also
    said his neck and shoulder pain was improving with therapy but pain continued in
    his low back and left knee. Dr. Garrels gave Shariff a cortisone injection in his
    right shoulder and released him to work the next day with restrictions.          Dr.
    Garrels also ordered an MRI of Shariff’s left knee, which revealed a small bone
    contusion on the medial femoral condyle.
    During late March and early April 2011, Dr. Garrels began to grow
    impatient and disenchanted with Shariff. On March 24, Shariff told Dr. Garrels he
    continued to have headaches.          Dr. Garrels noted Shariff displayed “quite
    dramatic” pain behaviors, including some moaning.         Dr. Garrels also noted a
    right shoulder labral tear, neck and low back pain, closed head injury with
    headaches and dizziness, and a history of left knee meniscectomy. Dr. Garrels
    changed Shariff’s medications and referred him to Dr. John Wright for a
    neurology evaluation, Dr. Phillip Kent for a neuropsychology evaluation,1 and Dr.
    Suleman Hussain for a right-shoulder evaluation. In a later email with nurse
    1
    Shariff later reported he was offended by Dr. Kent’s questions during their initial
    consultation, so he refused to return for additional services.
    5
    case-manager Vickie Kenney, Dr. Garrels wrote he had “lost all respect” for
    Shariff.
    At a March 30 appointment with Dr. Hussain, an orthopedic surgeon,
    Shariff reported discomfort in his right shoulder that started after the work-related
    collision. Dr. Hussain’s examination revealed weakness of the right shoulder,
    some reduced range of motion, and pain. After reviewing the imaging, the doctor
    opined Shariff had a superior labral deformity and signal abnormality, as well as
    potential rotator cuff deficit, which may include a full thickness longitudinal split.
    Dr. Hussain recommended a course of physical therapy, and if therapy was not
    beneficial, he suggested treating Shariff’s condition as an acute rotator cuff
    injury, with arthroscopic intervention.
    Following a March 31 consultation, Dr. Wright assessed Shariff with post-
    traumatic headaches and prescribed the pain reliever Frova. Shariff missed a
    follow-up appointment with Dr. Wright scheduled for April 18.2 Upon learning of
    the missed appointments, Dr. Garrels wrote to nurse Kenney: “Obviously, he’s
    going to miss every [appointment] scheduled.           He is trying to create the
    perception that he has memory loss. . . . I am not surprised at the extreme
    nature of his manipulation.”
    Meanwhile, in late March 2011, Kraft moved Shariff to the graveyard shift
    in the sanitation department. Shariff testified he remained on pain medication at
    that time and his new schedule caused him to suffer from insomnia. He cited
    2
    The record shows other instances of Shariff missing medical appointments scheduled
    during this time period.
    6
    those circumstances as the reason for missing some of his medical
    appointments.
    Shariff participated in physical therapy for his shoulder two to three times
    a week during April 2011. The company physical therapist reported Shariff was
    motivated and had improved his strength but still experienced discomfort when
    attempting a full range of motion. During a follow-up orthopedic appointment on
    April 27, Dr. Hussain found Shariff had a symptomatic rotator-cuff tear, along with
    potential biceps pathology and acromioclavicular arthrosis and recommended
    surgery. Shariff consented to the surgery, and the claims administrator approved
    the surgical procedure. On the date of Shariff’s appointment, the case manager
    memorialized her conversation with Dr. Hussain, stating Dr. Hussain agreed
    Shariff’s rotator-cuff tear looked “fresh” and was related to the car accident.
    Shariff returned to Dr. Garrels on May 2, complaining back and knee pain.
    Dr. Garrels expressed skepticism concerning Shariff’s motivations and “assessed
    back and knee pain of an unclear etiology, right shoulder pain, and headaches of
    an unclear etiology.” Dr. Garrels noted he was going to “wait and see” if Shariff
    changed his mind about “neuropsych testing, if he does not then I will probably
    not consider the headache work related . . . he could just be making up all of the
    symptoms.”
    Two days later, Dr. Garrels took the initiative to call Dr. Hussain to discuss
    “causation issues” in Shariff’s workers’ compensation case. Dr. Garrels left an
    impression with Dr. Hussain that Dr. Garrels believed Shariff was malingering.
    Also on May 4, 2011, Dr. Garrels sent Dr. Hussain a follow-up letter thanking him
    7
    for discussing their “mutual patient.” Dr. Garrels wrote: “As you are aware, he
    was involved in a motor vehicle accident about two months ago, along with
    another co-worker. He’s had numerous reports of injury from the rear-end MVA,
    while the co-worker had no subsequent injuries.”    Dr. Garrels asserted both he
    and the company’s physical therapist had evaluated Shariff without detecting any
    “acute shoulder findings.” Dr. Garrels then asked Dr. Hussain whether, based on
    Dr. Hussain’s clinical exam and the MRI, Dr. Hussain believed Shariff’s shoulder
    condition was acute and caused by the accident or chronic and preexisting.
    Dr. Hussain responded that Shariff’s imaging and his own physical-exam
    findings were consistent with a chronic, longstanding rotator-cuff-impingement
    problem likely present prior to the accident.   But Dr. Hussain added that he
    believed Shariff’s condition likely resulted from exacerbation of his preexisting
    impingement pathology. Dr. Garrels responded with an email on May 14, 2011,
    in which Dr. Garrels expressed his opinion that Shariff was “attempting to have
    Work Comp pick up all of his chronic health issues.” Dr. Garrels then wrote:
    In your answer to it being a chronic condition you used the word
    exacerbation. That terminology would tie the active treatment to
    the MVA. I was under the assumption from our conversation that
    his current state could just be explained by the underlying chronic
    degenerative state. If this is the case, could you resend the letter
    with clarification.
    On that same day, Dr. Hussain sent a revised letter to Dr. Garrels,
    removing any reference to exacerbation of a preexisting condition. On May 16,
    2011, Dr. Garrels called Shariff to express his “final opinion” that Shariff had
    reached maximum medical improvement (MMI) from the motor vehicle accident.
    In his note memorializing the conversation, Dr. Garrels also recounted his
    8
    interaction with Dr. Hussain, saying Dr. Hussain “concurred that the shoulder
    pathology is degenerative in nature.” In closing, Dr. Garrels noted: “I let [Shariff]
    know that for me to remain involved in the care of an individual felt to be
    malingering would be to perpetuate Workers’ Comp fraud which I had no desire.”
    Shariff filed a workers’ compensation claim in May 2011.
    In July 2011 Dr. David Field conducted an independent medical
    examination of Shariff. After reviewing MRI results and physician assessments,
    Dr. Field opined it was “very likely” Shariff sustained an injury to his right
    shoulder in the February motor vehicle accident. Dr. Field found it difficult to
    determine if the collision resulted in a new injury to Shariff’s rotator cuff or if the
    condition preexisted the accident, but in his opinion, the collision was at least a
    contributing factor to Shariff’s development of pain. In Dr. Field’s words, the
    work-related collision “certainly aggravated, flared up, or ‘lit up’ Shariff’s right
    shoulder problems.” At the request of Kraft’s counsel, Dr. Garrels responded,
    stating Dr. Fields only observed Shariff at a single visit and was unable to
    “appreciate the fact the shoulder never exhibited any objective examination
    findings which represent an acute injury.”
    On August 31, 2011, Dr. Hussain wrote a letter expressing his belief
    neither he nor Dr. Field could properly evaluate the cause of Shariff’s complaints
    because both of them only observed the right shoulder. Dr. Hussain indicated
    the person in the best position to opine as to causation would be Dr. Garrels, and
    Dr. Hussain deferred to Dr. Garrels’s opinion because Dr. Garrels had the
    opportunity to examine Shariff’s condition “from the beginning.”
    9
    Shariff’s attorney arranged for another IME on October 19, 2011, this time
    with Dr. Robin Epp. She diagnosed Shariff with the following conditions:
    1. Right shoulder pain with MRI arthrogram with evidence of a
    SLAP tear in the superior labrum and a partial thickness tear of the
    supraspinatus.
    2. Left knee pain after trauma.
    3. Neck pain.
    4. Bilateral SI joint pain and low back pain.
    5. Post-traumatic headaches.
    In Dr. Epp’s opinion, Shariff’s MRI abnormalities, his current symptoms,
    and his need for shoulder surgery were all causally related to the February 2011
    work-related collision.
    Kraft then hired Dr. William Boulden to perform a review of Shariff’s
    medical records. In Dr. Boulden’s view, the MRI revealed a mild superior labral
    tear or, perhaps, an abnormality of a small cleft, but not a full tear. Dr. Boulden
    opined Shariff’s shoulder symptoms may have been caused by the work accident
    but questioned whether the accident caused the SLAP tear and also opined
    Shariff did not need shoulder surgery. Later, Dr. Boulden performed an IME of
    Shariff, who initially refused to cooperate and had to be ordered by the agency to
    participate.   Dr. Boulden believed Shariff was professing more pain and
    dysfunction of his shoulder than indicated by the MRI. Dr. Boulden reiterated his
    belief shoulder surgery would result in a “very poor” outcome. He also did not
    believe the collision “caused the pathological findings” in Shariff’s shoulder. In
    his deposition testimony, Dr. Bolden acknowledged he did not see any medical
    records showing Shariff’s shoulder was symptomatic before the accident. Dr.
    10
    Bolden also agreed it was more likely than not that the accident caused Shariff’s
    pain symptoms.
    Finally, Shariff’s attorney arranged for another IME with board-certified
    neurosurgeon Dr. Robert Milas.         After hearing Shariff’s description of the
    accident and examining him, Dr. Milas opined Shariff’s headaches, as well as the
    condition of his lumbar spine, cervical spine, and right shoulder, were a direct
    result of the collision.
    A deputy workers’ compensation commissioner held a hearing on
    February 13, 2012, taking live testimony from Shariff and Dr. Garrels. In her
    thirty-six-page arbitration decision issued on July 31, 2013, the deputy concluded
    Shariff “failed to prove by a preponderance of the evidence that his ongoing
    shoulder complaints were a result of the work injury” and also failed to prove he
    sustained permanent disability as a result of the collision. The deputy likewise
    rejected Shariff’s claim for an award of alternate medical care. Shariff filed an
    intra-agency appeal.       The commissioner issued a thirty-five-page appeal
    decision, reversing the deputy and ordering Kraft to pay temporary disability
    benefits. The commissioner also held the employer liable for alternative medical
    care, specifically ordering “Dr. Garrels no longer to participate in the care of
    claimant as the relationship between claimant and Dr. Garrels is irreparably
    broken and would not likely result in a healthy doctor-client relationship.”
    Kraft petitioned for judicial review.   The district court found substantial
    evidence to support the commissioner’s findings regarding causation and upheld
    11
    the benefit award.   Kraft now appeals from the district court’s order on judicial
    review.
    II.    Standard of Review and Foundational Principles
    In appeals from a district court’s judicial-review order, the question is
    whether we reach the same decision as the district court when we apply Iowa
    Code chapter 17A, the Iowa Administrative Procedure Act (IAPA). Staff Mgmt. v.
    Jimenez, 
    839 N.W.2d 640
    , 653-54 (Iowa 2013).              If we reach the same
    conclusion, we affirm; if we reach a different conclusion, we reverse. Westling v.
    Hormel Foods Corp., 
    810 N.W.2d 247
    , 251 (Iowa 2012).
    Both our court and the district court review final agency action. See Iowa
    State Fairgrounds Sec. v. Iowa Civ. Rights Comm’n, 
    322 N.W.2d 293
    , 294 (Iowa
    1982) (interpreting prior version of IAPA and noting that upon “judicial review, the
    district court reviews the final agency decision, not the hearing officer’s
    proposal”). If the agency decision runs afoul of any of the grounds listed in
    section 17A.19(10) and the person seeking relief can show prejudice, the district
    court may reverse or modify the agency’s decision. 
    Id. Among the
    grounds for relief on judicial review is the absence of
    “substantial evidence” to support the commissioner’s factual determinations
    when the agency record is viewed as a whole.          Iowa Code § 17A.19(10)(f).
    Evidence is “substantial” if its quantity and quality “would be deemed sufficient by
    a neutral, detached, and reasonable person, to establish the fact at issue when
    the consequences resulting from the establishment of that fact are understood to
    be serious and of great importance.” 
    Id. § 17A.19(10)(f)(1).
                                             12
    Particularly pertinent to the challenge before us is the legislature’s
    definition of the phrase “when that record is viewed as a whole,” which provides:
    [T]he adequacy of the evidence in the record before the court to
    support a particular finding of fact must be judged in light of all the
    relevant evidence in the record cited by any party that detracts from
    that finding as well as all of the relevant evidence in the record cited
    by any party that supports it, including any determinations of
    veracity by the presiding officer who personally observed the
    demeanor of the witnesses and the agency’s explanation of why
    the relevant evidence in the record supports its material findings of
    fact.
    
    Id. § 17A.19(10)(f)(3)
    (emphasis added).
    The “presiding officer” is the deputy commissioner who conducts the
    arbitration hearing. See Neal v. Annett Holdings, Inc., 
    814 N.W.2d 512
    , 532
    (Iowa 2012) (Mansfield, J., dissenting) (quoting State 
    Fairgrounds, 322 N.W.2d at 295
    , for the proposition that a disagreement on the facts between the deputy and
    the commissioner may “affect the substantiality of the evidence supporting” the
    final agency action).
    According to the definition at section 17A.19(10)(f)(3), when we assess
    whether substantial evidence supports the agency decision, we “consider the
    credibility determination by the presiding officer who had a chance to observe the
    demeanor of the witnesses.            When analyzing the deputy’s credibility
    determination, we look at the facts relied upon by the expert and circumstances
    contained in the record.” 
    Jimenez, 839 N.W.2d at 654
    .
    If the evidence before the agency is open to a fair difference of opinion,
    we must find substantial evidence supports the commissioner’s decision. 
    Id. We 13
    will not consider evidence insubstantial merely because we may draw different
    conclusions from the record than the commissioner drew. 
    Id. Generally, causation
    questions fall into the exclusive domain of medical
    experts. See Cedar Rapids Cmty. Sch. Dist. v. Pease, 
    807 N.W.2d 839
    , 845
    (Iowa 2011). The commissioner may reject expert opinion, in whole or in part,
    particularly when there is competing testimony. 
    Id. at 845,
    850. A reviewing
    court may not accept the competing expert’s opinions as a means to reverse the
    commissioner’s findings of fact on medical causation. 
    Id. at 850
    (stating we
    accord deference to the commissioner on the issue of medical causation
    because that issue presents “a question of fact that is vested in the
    [commissioner’s] discretion”).
    III.   Analysis
    Kraft describes its challenge to the commissioner’s decision as a review
    for substantial evidence, “but with a twist.”   The twist is the commissioner’s
    rejection of the deputy’s determinations concerning the veracity of claimant
    Shariff and Kraft’s company doctor, Rick Garrels.      The employer asks us to
    reverse the final agency action because the commissioner’s decision was not
    supported by substantial evidence in the record viewed as a whole as envisioned
    by section 17A.19(10)(f)(3).
    A. Observations of demeanor
    Kraft is correct that when deciding if the agency action stems from factual
    findings not supported by substantial evidence, the court’s assessment of the
    adequacy of the evidence must include consideration of the deputy’s
    14
    determinations of veracity based on his or her personal observation of witness
    demeanor at the arbitration hearing. See Iowa Code § 17A.19(10)(f)(3). But
    section 17A.19(10)(f)(3) does not require this court to accord weight to a deputy’s
    veracity determinations when the deputy’s determinations are not based on his or
    her personal observations of demeanor evidence.            The commissioner is
    generally free to reweigh the evidence in the agency record. See 
    id. § 17A.15(2)
    (allowing fact findings to be prepared by someone other than person who
    presided at reception of evidence “unless demeanor of witnesses is a substantial
    factor”); see also Trade Prof’ls, Inc. v. Shriver, 
    661 N.W.2d 119
    , 125 (Iowa 2003).
    In rejecting Shariff’s compensation claim, the deputy offered a critique of
    the claimant’s credibility.   But her concerns did not stem from watching his
    demeanor and listening to his delivery on the witness stand. The deputy opined:
    At the time of evidentiary hearing, claimant provided knowledgeable
    testimony, delivered in a clear manner. Claimant’s physical
    presentation was consistent with his reported ongoing complaints.
    However, upon review of the remainder of the evidentiary record,
    the undersigned is given some pause as to the weight to be
    properly provided to claimant’s testimony and subjective reports of
    pain.
    The deputy concluded Shariff’s “personal feelings” about the handling of his
    workers’ compensation claim drew his “credibility into question.” She stated:
    “While I believe claimant may wholeheartedly believe what he asserts, I find little
    support for his assertions outside of claimant’s own testimony. Therefore, while
    claimant was a pleasant man at the time of evidentiary hearing, the undersigned
    is unable to find his testimony credible.”
    15
    The deputy’s determination Shariff lacked credibility was not anchored in
    her observations of him. In fact, all of the deputy’s comments about Shariff’s live
    testimony were favorable to Shariff. She described him as “knowledgeable” and
    “clear” and deemed his appearance to be consistent with his complaints. The
    deputy also found him to be “pleasant” and sincere in his own assertions. The
    deputy questioned the weight to give Shariff’s testimony only “upon review of the
    remainder of the evidentiary record.”
    In declining to adopt the deputy’s findings in the intra-agency appeal, the
    commissioner wrote:
    [T]he presiding deputy simply stated that she believes claimant
    believes what he asserts, but she found little support for his
    assertions outside of his own testimony.        Such credibility
    assessment of the deputy is based upon her review of the medical
    records and not upon her personal observations of claimant or his
    demeanor at the hearing.
    We agree with the commissioner’s reasoning.             Because Shariff’s
    demeanor was not a substantial factor in the deputy’s determination, we, like the
    district court, are not troubled by the commissioner’s divergent fact findings on
    this point.
    We also consider the deputy’s determination Dr. Garrels was a credible
    witness. Much of the deputy’s reliance on Dr. Garrels’s opinions stemmed from
    the deputy’s review of medical records and not her observation of his demeanor
    at the arbitration hearing. For example, the deputy found because Dr. Garrels
    acted as Shariff’s authorized physician throughout the course of treatment, his
    opinion was entitled to greater weight than the one-time evaluation by Dr. Epp.
    The commissioner was entitled to and did rebuff that conclusion, noting our
    16
    supreme court has rejected the notion that, as a matter of law, a treating
    physician’s view will be given more weight than a physician who examines the
    patient in anticipation of litigation, citing Gilleland v. Armstrong Rubber Co., 
    524 N.W.2d 404
    , 408 (Iowa 1994).
    It is true the deputy also stated: “Observation of Dr. Garrels at the time of
    evidentiary hearing and in the limited deposition testimony video provided for
    review[3] gives the undersigned no pause regarding the veracity of Dr. Garrels’s
    testimony.” The deputy did not mention any specific aspects of his demeanor,
    but to the extent the deputy’s veracity determination concerning Dr. Garrels was
    based on her personal observations of him at the hearing, we will consider that
    determination as part of our substantial-evidence review.           See Iowa Code §
    17A.19(10)(f)(3). We likewise consider the commissioner’s “explanation of why
    the relevant evidence in the record supports its material findings of fact.” See 
    id. B. Substantial-evidence
    review
    Upon de novo review of the record, the commissioner offered the following
    four-point rationale for finding Shariff had proved his medical conditions were
    caused by the February 2011 work-related accident.
    3
    The deputy received a video exhibit prepared by Shariff’s counsel that juxtaposed
    deposition clips of Dr. Garrels and Dr. Hussain with textual statements regarding
    claimant’s position. The deputy decided to give that exhibit “negligible weight” because
    she believed the clips were taken out of context. The only weight the deputy gave the
    exhibit related to her observation of the doctors’ demeanor during the video depositions.
    Because the same exhibit was available to the commissioner, he was equally able to
    make credibility determinations based on the doctors’ demeanors while being deposed.
    See generally Macaulay v. Wachovia Bank, 
    569 S.E.2d 371
    , 376 (S.C. Ct. App. 2002)
    (finding appellate court was placed in “equal position to judge [witness’s] credibility”
    when testimony was through video deposition).
    17
    First, claimant’s assertions that he had no chronic
    headaches and no back, neck, chronic left knee, and right shoulder
    pain before the stipulated injury in this case is unrebutted. . . .
    [T]here is no evidence in this record that claimant had any
    symptoms involving those areas before the stipulated injury. If
    such conditions had existed, they did not require restrictions as to
    claimant's functional ability and did not require ongoing medical
    care. Dr. Garrels’ opinions as to claimant’s pre-injury baseline of
    function border on fictitious.
    Second, claimant has exhibited chronic complaints of
    headaches, low back, left knee, and right shoulder pain since the
    motor vehicle accident. No physician in this case, other than Dr.
    Garrels, suggests that these complaints are false or unreal. . . .
    Neither Dr. Garrels nor Dr. Hussain has explained satisfactorily how
    they arrived at the opinion that this ongoing and chronic pain
    somehow was transformed into a non-work related condition shortly
    after Dr. Hussain recommended surgery for what he termed as an
    exacerbation of claimant’s prior shoulder condition. Claimant
    clearly has not returned to this figurative baseline . . . . The
    suggestion to diminish the work injury of claimant that this accident
    was minor defies logic after a simple review of the accident
    photos—not even defendants are asserting that claimant’s initial
    pain was not caused by the accident.
    Third, although Dr. Hussain has refused to provide a
    causation opinion other than deferring to Dr. Garrels, four other
    board certified physicians, Drs. Field, Milas, Boulden, and Epp,
    sufficiently agree that the motor vehicle accident caused claimant’s
    current pain. These physicians simply disagree as to course of
    future treatment options. Even Dr. Hussain continues to believe the
    pain warrants surgery, he merely defers to Dr. Garrels as to the
    cause of the ongoing pain.
    Finally, following a review of the entire record in this
    contested case, it is found that in this particular case, Dr. Garrels’
    views lack objectivity.
    The commissioner discussed in detail Dr. Garrels’s hostility toward Shariff,
    which we find well-documented in the agency record. Noting Dr. Garrels has a
    “significant and professional history of providing objective medical opinions
    before the division,” the commissioner sharply rebuked Dr. Garrels’s conduct in
    persuading Dr. Hussain to alter his opinion “in this particular case”:
    18
    It must also be noted that this contested appeal is quite likely the
    first time where it has been clearly proven that an occupational
    medicine doctor actually lobbied a medical specialist to change his
    opinion in a manner favorable to an employer and thus directly
    interfere with the specialist’s recommended and authorized
    treatment of the work injury, which had been voluntarily accepted
    by the employer and insurer. . . . In a workers’ compensation
    context, such advocacy is permissible by a physician employed for
    that purpose by an employer or insurer, but this is not . . .
    permissible for a physician employed to treat a work injury under
    the Iowa Code.[4]
    On appeal, Kraft contends the commissioner’s rationale is not supported
    by substantial evidence because it rests too heavily on Shariff’s subjective pain
    complaints and the rejection of Dr. Garrels’s testimony on a “cold record.”
    The temperature of the record does not matter here. This contested case
    does not rise or fall on the demeanor of the live witnesses. The question here is
    medical causation. The commissioner, as the fact finder, determines the weight
    to give expert opinions on that issue. See Sherman v. Pella Corp., 
    576 N.W.2d 312
    , 321 (Iowa 1998). Giving credence to the opinions expressed by Dr. Field,
    Dr. Milas, Dr. Epp, and even Dr. Boulden, following their IMEs, the commissioner
    found the February 2011 work injury was the cause of Shariff’s headaches, as
    well as his neck, back, and shoulder conditions. As a reviewing court, we are not
    in a position to find that Dr. Garrels’s contrary view “trumps” the other medical
    causation evidence cited by the commissioner—even if we consider the deputy’s
    determination that Dr. Garrels’s demeanor during his testimony did not raise red
    4
    After criticizing “the objectivity of Dr. Garrels,” the commissioner also found “claimant
    has not shown an ideal level [of] respect for his engagement with the workers’
    compensation system and obtaining his own medical treatment commensurate with his
    assertions of ongoing pain.” The commissioner found it “difficult to discern” the level of
    claimant’s disrespect resulting “from his perception of hostility from Dr. Garrels and what
    level was attempting to control his outcome.”
    19
    flags concerning his veracity. See 
    Jimenez, 839 N.W.2d at 654
    (stating if the
    evidence before the agency is open to a fair difference of opinion, a reviewing
    court must find substantial evidence supports the commissioner’s decision).
    We find substantial evidence in the record to support the commissioner’s
    decision. Accordingly, we affirm the award of temporary disability benefits and
    alternative medical care.
    AFFIRMED.