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Compare the published Medicare service mix of James Gregory Roberts, M.D., R.V.T. FACS with clinicians in the same registry specialty: Vascular Surgery (CMS).

MODESTO, CA · 100 milesEdit location
Within 100 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 118 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Manuel Garcia-Toca, MD

General Surgery · Vascular Surgery (CMS) · Stanford, CA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
43%Service-mix similarity~66.1 milesView profile →

Camille Jackson, M.D.

Vascular Surgery (CMS) · Oakland, CA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
37%Service-mix similarity~67.3 milesView profile →

Austin Holmes, MD

Vascular Surgery (CMS) · Roseville, CA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
36%Service-mix similarity~75.7 milesView profile →

Shaun Michael Gifford, M.D.

Vascular Surgery (CMS) · Travis Afb, CA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
33%Service-mix similarity~67.3 milesView profile →

Thomas Anthony Heafner, M.D.

General Surgery · Vascular Surgery (CMS) · Travis Afb, CA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
33%Service-mix similarity~67.3 milesView profile →

Joyce Lu, M.D.

Vascular Surgery (CMS) · Fremont, CA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
28%Service-mix similarity~54.3 milesView profile →

Kate Elizabeth Kiely, MD

Vascular Surgery (CMS) · Fresno, CA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
26%Service-mix similarity~87.1 milesView profile →

Esther Bae, DO

General Surgery · Vascular Surgery (CMS) · Burlingame, CA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
26%Service-mix similarity~75.5 milesView profile →

Thomas Chin Park, MD

Vascular Surgery (CMS) · Sacramento, CA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
25%Service-mix similarity~68.4 milesView profile →

Jafar Tay, MD

General Surgery · Vascular Surgery (CMS) · San Jose, CA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
25%Service-mix similarity~51.6 milesView profile →

Anders Davidson, MD

General Surgery · Vascular Surgery (CMS) · Travis Afb, CA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
25%Service-mix similarity~67.3 milesView profile →

Gabriel Herscu, M.D.

Vascular Surgery (CMS) · Fremont, CA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
25%Service-mix similarity~54.3 milesView 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 approximate distance 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.