Knee replacement volume in Phoenix, Arizona

49 clinicians CMS lists under Orthopedic Surgery, Sports Medicine, or Hand Surgery billed at least one knee replacement in Phoenix in the June 2026 release.

Clinicians

Clinician	Knee replacements billed	Percentile rank
Bertrand Kaper, MD	205	99%
Steven Werner, DO	173	98%
Russell Cohen, MD	157	97%
Lige Kaplan, MD	116	94%
Robert Pivec, MD	97	91%
Henry Clarke, MD	96	90%
Bourck Cashmore, MD	91	89%
Charles Creasman, MD	60	80%
Michael Domer, MD	51	76%
Amalia Decomas, MD	49	74%
Sepein Chiang, DO	47	73%
Scott Siverhus, MD	45	72%
Michael Brennan, MD	43	70%
Judd Cummings, MD	43	70%
Joshua Silver, MD	40	68%
Cody Olson, DO	37	66%
Andrew Adamczyk, MD	35	64%
Richard Martin, MD	35	64%
Rachel Semus, MD	31	60%
Michael Duran, MD	30	59%
Jennifer Wood, MD	28	57%
Matthew Seidel, MD	27	56%
Meagan Tibbo, MD	27	56%
Carla Strohhofer, MD	25	53%
Michael Dersam, MD	22	50%
Steven Kassman, MD	17	43%
Delwyn Worthington, MD	17	43%
Tyler Collins, MD	15	39%
Joseph Walker, MD	14	38%
Michael Weng, MD	13	36%
Thomas Goodine, MD	12	34%
Brad Bruns, MD	1-10	32% or below
Jordan Conroy, MD	1-10	32% or below
Sumit Dewanjee, MD	1-10	32% or below
Benjamin Geer, MD	1-10	32% or below
Michael Hayman, MD	1-10	32% or below
Braiden Heaps, MD	1-10	32% or below
Kirk Hippensteel, MD	1-10	32% or below
David Jacofsky, MD	1-10	32% or below
Keith Jarbo, MD	1-10	32% or below
James Lendrum, MD	1-10	32% or below
Kristen Maskala, MD	1-10	32% or below
Elliot Mendelsohn, MD	1-10	32% or below
Neil Motzkin, MD	1-10	32% or below
Dipak Ramkumar, MD	1-10	32% or below
Brian Shafer, MD	1-10	32% or below
Michael Sochacki, MD	1-10	32% or below
John Tidwell, MD	1-10	32% or below
Craig Weinstein, MD	1-10	32% or below

Sorted by the number of knee replacements billed to Medicare, highest first. This is an ordering of one published figure, not a ranking of quality, skill, or outcomes. CMS suppresses counts of 10 and below to protect patient privacy and publishes the range instead, which is not a count of zero; 18 of these clinicians carry that range.

Understanding CMS Data

These figures are based on knee replacements billed to Original Medicare and Medicare Advantage as reported by the Centers for Medicare & Medicaid Services (CMS) in their June 2026 data release. The CMS data doesn't include procedures performed for patients who have other health care coverage (e.g., commercially insured, self pay, or VA). Furthermore, CMS sums up specific billing codes that cover first-time knee replacement, partial knee replacement, and revision of a previous knee replacement to calculate the total number of knee replacements. Billing variation and coding errors could potentially affect CMS's data. Therefore, the knee replacement volume data reported by CMS may be higher or lower than the actual total knee replacements performed by a clinician. We share the total knee replacement figures for the clinicians CMS lists under Orthopedic Surgery, Sports Medicine, or Hand Surgery as CMS publishes them, without alteration.

Source: Centers for Medicare & Medicaid Services (June 2026 release).