Knee replacement clinicians in Erie, Pennsylvania

CMS lists 42 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 Erie, Pennsylvania (details below).

Knee replacement volume

Clinician	Knee replacements billed	Percentile rank
Jeremy Gebhart, MD	140	96%
Nigel Azer, MD	125	95%
Ryan Molli, MD	113	93%
Robert Lupo, MD	88	89%
Matthew Deren, MD	76	86%
Nicolas Piuzzi, MD	64	82%
Brendan Patterson, MD	54	77%
Benjamin Frye, MD	53	76%
Adam Klein, MD	49	74%
Eric Chen, MD	46	72%
Tariq Nayfeh, MD	46	72%
Thomas Muzzonigro, MD	43	70%
James Delullo, MD	41	69%
David German, MD	40	68%
Edward McClain Iii, MD	40	68%
Andrew Waligora, MD	35	64%
Jeffrey Sewecke, DO	28	57%
Nick Stefanovski, MD	27	55%
James Boniface, MD	21	48%
Mark Buseck, MD	19	45%
Ronald Trale, DO	19	45%
Andrew Gage, MD	15	39%
Richard Goodrich, DO	15	39%
Scott Berkenblit, MD	14	37%
Nilesh Patil, MD	14	37%
Gary Cortina, MD	11	31%
Daniel Haffner, MD	11	31%
Brian Still, MD	11	31%
Mark Bloomstine, MD	1-10	31% or below
Christopher Ferguson, DO	1-10	31% or below
Anthony Ferretti, DO	1-10	31% or below
Andrew Kaye, MD	1-10	31% or below
Mark Krahe, DO	1-10	31% or below
John Lehman, MD	1-10	31% or below
Kenneth Molinero, DO	1-10	31% or below
Jeffrey Nechleba, MD	1-10	31% or below
Lukas Nystrom, MD	1-10	31% or below
Peter Siska, MD	1-10	31% or below
Jacob Smith, DO	1-10	31% or below
Joshua Tuck, DO	1-10	31% or below
Vincent Vena, MD	1-10	31% or below
Robert Woods, DO	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).