Karen Woo
Vascular Surgery (CMS) · Los Angeles, CA
Shared published services3 shared services · view billing descriptions
56%Service-mix similarityView profile →
Similar work.
More providers to explore.
Compare the published Medicare service mix of Gerald Sydorak, M.D. with clinicians in the same registry specialty: General Surgery · Thoracic Surgery · Vascular Surgery (CMS).
CA · Exact areaEdit location
2024 published service data · 333 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.
Shipra Arya, MD
General Surgery · Vascular Surgery (CMS) · Palo Alto, CA
Shared published services3 shared services · view billing descriptions
56%Service-mix similarityView profile →
Anne Marie Prentice, MD
Vascular Surgery (CMS) · Fresno, CA
Shared published services3 shared services · view billing descriptions
53%Service-mix similarityView profile →
Steven Katz, MD
Specialty details in registry · Los Angeles, CA
Shared published services3 shared services · view billing descriptions
52%Service-mix similarityView profile →
Stephen F Lindsay, MD
Specialty details in registry · Newport Beach, CA
Shared published services3 shared services · view billing descriptions
51%Service-mix similarityView profile →
Tom Alsaigh, M.D.
Vascular Surgery (CMS) · San Diego, CA
Shared published services3 shared services · view billing descriptions
51%Service-mix similarityView profile →
Randall Gordon Stern, MD
General Surgery · Vascular Surgery (CMS) · Fresno, CA
Shared published services3 shared services · view billing descriptions
50%Service-mix similarityView profile →
Kamell Rashad Eckroth-Bernard, M.D.
General Surgery · Vascular Surgery (CMS) · Fresno, CA
Shared published services3 shared services · view billing descriptions
49%Service-mix similarityView profile →
Elizabeth Leigh George, MD
Vascular Surgery (CMS) · Palo Alto, CA
Shared published services3 shared services · view billing descriptions
49%Service-mix similarityView profile →
Steven M. Farley, MD
Vascular Surgery (CMS) · Los Angeles, CA
Shared published services3 shared services · view billing descriptions
48%Service-mix similarityView profile →
Jeffrey Kaplan, MD
General Surgery · Vascular Surgery (CMS) · Los Gatos, CA
Shared published services3 shared services · view billing descriptions
47%Service-mix similarityView profile →
Anna Gasparyan, MD
Vascular Surgery (CMS) · Palm Springs, CA
Shared published services3 shared services · view billing descriptions
47%Service-mix similarityView profile →
How this comparison works
We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.
Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.
Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.