Knee replacement volume in Frederick, Maryland

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

Clinicians

Clinician	Knee replacements billed	Percentile rank
Christopher Cannova, MD	260	99%
Joseph Ciotola, MD	230	99%
Theodore Manson, MD	179	98%
Joseph Holobinko, MD	165	98%
Danielle Ponzio, MD	162	97%
Cory Walsh, MD	130	95%
Sridhar Durbhakula, MD	129	95%
Savyasachi Thakkar, MD	112	93%
Scott Silverstein, MD	111	93%
Sam Sydney, MD	96	90%
Lucas Nikkel, MD	94	90%
David Maish, MD	74	85%
Taylor Kimball, MD	68	83%
Alvaro Cabezas, MD	67	83%
Brett Hampton, MD	67	83%
Thomas Ring, MD	61	80%
Rishi Gupta, MD	60	80%
Therlinsie Fleurizard	59	79%
Kyle Messick, MD	59	79%
Morris Polsky, MD	55	78%
Robert Gillis, MD	49	74%
Nirav Patel, MD	49	74%
Allison Fillar, MD	46	73%
Daniel Bauk, MD	45	72%
Bruce Knolmayer, MD	44	71%
Tariq Nayfeh, MD	44	71%
Kenneth Vaz, MD	40	68%
Scott Adams, MD	39	67%
Michael Anvari, MD	38	66%
Janet Conway, MD	36	65%
Michael Wallace, MD	33	62%
Mark Peterson, MD	32	61%
Denis O Brien, MD	25	53%
Rhamee Badr, MD	23	51%
Christopher Raffo, MD	23	51%
Joseph Serino, MD	23	51%
Daniel Warner, MD	21	49%
Victor Anyangwe, MD	19	46%
Carter Mitchell, MD	17	43%
Ronald Delanois, MD	16	41%
Manminder Bhatia, DO	15	39%
Jordan Villa, MD	15	39%
Hugh House, MD	14	38%
Adedapo Ajayi, MD	1-10	32% or below
Dona Alvarez, MD	1-10	32% or below
Barry Boden, MD	1-10	32% or below
James Gilbert, MD	1-10	32% or below
Bryan Klepper, MD	1-10	32% or below
David Smink, MD	1-10	32% or below
David Streets, MD	1-10	32% or below
Patricia Turner, MD	1-10	32% or below
William Volk, MD	1-10	32% or below
James Weiss, MD	1-10	32% or below
Victor Wowk, 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; 11 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).