Hip replacement clinicians in Phoenix, Arizona

CMS lists 45 clinicians with a primary specialty of Orthopedic Surgery, Sports Medicine, or Hand Surgery who have billed Medicare for at least one hip replacement and practice in Phoenix, Arizona (details below).

Hip replacement volume

Clinician	Hip replacements billed	Percentile rank
Bertrand Kaper, MD	146	99%
Steven Werner, DO	143	99%
Bourck Cashmore, MD	88	95%
Robert Pivec, MD	79	93%
Russell Cohen, MD	78	93%
Judd Cummings, MD	70	91%
Lige Kaplan, MD	68	91%
Joshua Silver, MD	47	83%
Michael Domer, MD	37	77%
Charles Creasman, MD	35	76%
Matthew Seidel, MD	32	73%
Andrew Adamczyk, MD	31	72%
Amalia Decomas, MD	31	72%
Joseph Walker, MD	31	72%
Michael Duran, MD	26	68%
Meagan Tibbo, MD	25	67%
Scott Siverhus, MD	24	66%
Delwyn Worthington, MD	24	66%
Michael Brennan, MD	15	54%
Rachel Semus, DO	15	54%
Sepein Chiang, DO	14	52%
Clark Andrews, MD	11	46%
Clifford Jones, MD	11	46%
Jesse Anderson, MD	1-10	46% or below
Naftaly Attias, MD	1-10	46% or below
Brad Bruns, MD	1-10	46% or below
Jordan Conroy, MD	1-10	46% or below
Michael Dersam, MD	1-10	46% or below
Benjamin Geer, MD	1-10	46% or below
Thomas Goodine, MD	1-10	46% or below
Michael Hayman, MD	1-10	46% or below
Kirk Hippensteel, MD	1-10	46% or below
David Jacofsky, MD	1-10	46% or below
Steven Kassman, MD	1-10	46% or below
Neal Krentz, DO	1-10	46% or below
James Lendrum, MD	1-10	46% or below
John Matthews, MD	1-10	46% or below
Elliot Mendelsohn, MD	1-10	46% or below
Robert Mercer, MD	1-10	46% or below
Kathryn Metcalf, MD	1-10	46% or below
Neil Motzkin, MD	1-10	46% or below
Dipak Ramkumar, MD	1-10	46% or below
Michael Sochacki, MD	1-10	46% or below
Carla Strohhofer, MD	1-10	46% or below
John Tidwell, MD	1-10	46% or below

Sorted by the number of hip replacements billed to Medicare, highest first, not by quality or skill. CMS suppresses counts between 1 and 10 to protect patient privacy and publishes the range instead.

Understanding CMS Data

CMS's "Hip replacement" category combines specific billing codes for hip replacement surgery to calculate the number of times each clinician billed Medicare for a "Hip replacement." These include first-time hip replacement, partial hip replacement, and revision of a previous hip replacement. The category does not include every operation that implants a hip prosthesis: CMS leaves out the billing code that covers hip replacement to treat a broken hip, so those operations do not count toward this total. CMS reports only procedures that clinicians billed to Original Medicare and Medicare Advantage. Therefore, CMS's procedure volume data does not include procedures that clinicians may have performed on patients who have other health care coverage (e.g., commercial insurance, self-pay, or the VA). Billing variation and coding errors can also affect CMS's data. Therefore, the number of procedures that CMS reports for a clinician may be higher or lower than the actual number of hip replacements a clinician performed during the reporting period. Lastly, only clinicians with a primary specialty of Orthopedic Surgery, Sports Medicine, or Hand Surgery (as reported to Medicare) are presented.

Source: Centers for Medicare & Medicaid Services (August 18, 2026 release).