The Arizona Supreme Court ruled on August 21, 2026, in the case of Arojojoye v. Allen, CV-25-0119-PR, clarifying the requirements for expert testimony in medical malpractice cases. This decision affects how plaintiffs can present their cases against healthcare providers, particularly regarding the qualifications of expert witnesses. The ruling emphasizes the importance of matching the specialty of the expert with that of the physician being sued.
The case arose from the tragic death of Crystal Allen, who developed an infection after receiving treatment for a pressure ulcer from Dr. Oyesiji Arojojoye. After her death, her mother, Vickie Allen, filed a lawsuit against Arojojoye, claiming he failed to provide adequate care. The case highlights the complexities involved in proving medical malpractice and the critical role of expert testimony in such cases.
In the background of this case, Oyesiji A. Arojojoye, M.D., is a physician who claims to be a board-certified wound care specialist. He treated Crystal Allen for a pressure ulcer while she was in a skilled nursing facility. After her treatment, she developed sepsis, which ultimately led to her death. Vickie Allen alleged that Arojojoye failed to protect her daughter from complications arising from the ulcer and that he did not provide timely medical assessments or referrals.
Initially, Allen retained Dr. Andrew Marc Meillier, a board-certified internist, to testify about the standard of care. Arojojoye contested this, arguing that Meillier was not qualified to testify because he did not share the same specialty as Arojojoye, who claimed to be a wound care specialist. The trial court denied Arojojoye's motion for summary judgment, stating that the care he provided fell under his internal medicine practice, allowing Meillier to testify.
Arojojoye subsequently appealed this decision, and the court of appeals ruled in his favor, concluding that Meillier was unqualified to testify because he did not have the same specialty as Arojojoye. This ruling was based on the interpretation of Arizona Revised Statutes § 12-2604, which requires that expert witnesses in medical malpractice cases must have the same specialty as the physician being sued.
The Arizona Supreme Court, led by Justice William Montgomery, examined whether the court of appeals properly applied the law regarding expert testimony qualifications. The court determined that the lower court did not adequately analyze the treatment provided by Arojojoye or the nature of his claimed specialty. The Supreme Court vacated the court of appeals' decision and remanded the case back to the trial court for further consideration.
In its ruling, the court stated, "The record is unclear as to whether the trial court considered the care or treatment at issue as alleged by the plaintiff." The Supreme Court emphasized the need for a thorough examination of whether the treatment provided was indeed within the specialty of wound care, as claimed by Arojojoye.
This ruling has significant implications for future medical malpractice cases in Arizona. It reinforces the necessity for plaintiffs to present expert testimony from individuals who share the same specialty as the physician being sued. This requirement aims to ensure that the expert's qualifications align with the specific medical field relevant to the case.
The impact of this ruling extends beyond this particular case. It sets a precedent that may affect how medical malpractice claims are litigated in Arizona, potentially making it more challenging for plaintiffs to find qualified experts willing to testify against healthcare providers. The decision also underscores the importance of clear communication and documentation regarding the qualifications of medical professionals.
Going forward, the trial court will need to reconsider Arojojoye's motion for summary judgment in light of the Supreme Court's guidance. This may involve reevaluating the qualifications of the expert witnesses and determining whether the treatment at issue falls within the appropriate specialty. The case remains open for further litigation, and it is possible that additional appeals could arise depending on the trial court's findings.