Knee replacement clinicians in Charlotte, North Carolina

CMS lists 45 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 Charlotte, North Carolina (details below).

Knee replacement volume

Clinician	Knee replacements billed	Percentile rank
Howard Homesley, MD	213	99%
Ronald Singer, MD	170	98%
Benjamin Wooster	143	96%
Keith Fehring, MD	134	96%
John Mason, MD	130	95%
Jesse Otero, MD	115	94%
Brian Curtin, MD	101	91%
Brian Krenzel, MD	100	91%
Matthew Duffin, MD	98	91%
John Masonis, MD	86	88%
James Fraser, MD	84	88%
Gregory Kurkis, MD	82	87%
Kevin Weiss, DO	78	86%
David Constantinescu, MD	77	86%
Collin Blackburn, MD	75	85%
Zachary Sirois, MD	67	83%
Matthew Hadley, MD	55	77%
Matthew Gullickson, MD	54	77%
Michael Bates, MD	50	75%
Steve Martin, MD	39	67%
Ranjan Maitra, MD	37	65%
Marcus Cook, MD	32	61%
Richard Leighton, DO	30	59%
Jess Kirby, MD	28	57%
Christopher Mann, MD	27	55%
Timothy Ewald, MD	23	51%
Joseph Gentile, MD	20	47%
James Rentz, MD	20	47%
James Romanowski, MD	19	45%
Eric Dilbone, MD	18	44%
Larry Martin, MD	15	39%
Daniel Bracey, MD	13	35%
Josef Jolissaint, MD	11	31%
Colin Crickard, MD	1-10	31% or below
David Dupuy, MD	1-10	31% or below
Timothy Gajewski, MD	1-10	31% or below
Nikkole Haines, MD	1-10	31% or below
Patrick Hayes, MD	1-10	31% or below
Robert McBride, MD	1-10	31% or below
Suman Medda, MD	1-10	31% or below
Scott Oneal, MD	1-10	31% or below
Eugene Powell, MD	1-10	31% or below
Carson Sanders, MD	1-10	31% or below
John Smid, MD	1-10	31% or below
Ryan Voskuil, 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).