Knee replacement clinicians in Frederick, Maryland

CMS lists 52 clinicians with a primary specialty of Orthopedic Surgery, Sports Medicine, or Hand Surgery who have billed Medicare for at least one knee replacement and practice in Frederick, Maryland (details below).

Knee replacement volume

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%
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%
Therlinsie Fleurizard	62	81%
Thomas Ring, MD	61	80%
Rishi Gupta, MD	60	80%
Kyle Messick, MD	59	79%
Morris Polsky, MD	55	77%
Nirav Patel, MD	50	75%
Robert Gillis, MD	49	74%
Allison Fillar, MD	46	72%
Tariq Nayfeh, MD	46	72%
Daniel Bauk, MD	45	72%
Bruce Knolmayer, MD	44	71%
Kenneth Vaz, MD	42	69%
Scott Adams, MD	39	67%
Michael Anvari, MD	38	66%
Janet Conway, MD	36	64%
Brett Himmelwright, DO	36	64%
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%
Daniel Warner, MD	21	48%
Victor Anyangwe, MD	19	45%
Carter Mitchell, MD	17	42%
Manminder Bhatia, DO	15	39%
Jordan Villa, MD	15	39%
Hugh House, MD	14	37%
Adedapo Ajayi, MD	1-10	31% or below
Dona Alvarez, MD	1-10	31% or below
Barry Boden, MD	1-10	31% or below
Andre Gazdag, MD	1-10	31% or below
Bryan Klepper, MD	1-10	31% or below
Rajeev Pandarinath, MD	1-10	31% or below
David Smink, MD	1-10	31% or below
David Streets, MD	1-10	31% or below
Patricia Turner, MD	1-10	31% or below
James Weiss, MD	1-10	31% or below
Victor Wowk, MD	1-10	31% or below

Sorted by the number of knee 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 "Knee replacement" category combines specific billing codes for knee replacement surgery to calculate the number of times each clinician billed Medicare for a "Knee replacement." These include first-time knee replacement, partial knee replacement, and revision of a previous knee replacement. 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 knee 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).