McDaniel v. Payson Healthcare Management, Inc.
Annotate this Case
In this medical malpractice case, the Supreme Court held that defendants do not violate the "One-Expert Rule" when offering the testimony of a treating physician on the standard of care, in addition to that of a retained or specially employed expert, when the testimony is based on the treating physician's personal observations and participation in providing treatment to the plaintiff.
At issue was the One-Expert Rule set forth in Ariz. R. Civ. P. 26-(b)(4)(F)(i), which allows each side in a medical malpractice case presumptively to call only one retained or specially-employed expert to testify on the standard of care issue. The Supreme Court remanded this case for a new trial, holding (1) the trial court correctly declined to find a violation of the One-Expert Rule in this case; and (2) a treating physician dismissed on summary judgment is not an indispensable party to an appeal of the denial of a motion to name him a nonparty at fault.
Some case metadata and case summaries were written with the help of AI, which can produce inaccuracies. You should read the full case before relying on it for legal research purposes.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.