John Hanh Nguyen, M.D.
Anesthesiology · Palo Alto, CA
Shared published services1 shared services · view billing descriptions
73%Service-mix similarity~6.5 milesView profile →
Similar work.
More providers to explore.
Compare the published Medicare service mix of Steven George Xanthopoulos, M.D. with clinicians in the same registry specialty: Anesthesiology.
MENLO PARK, CA · 10 milesEdit location
Within 10 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 · 269 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.
Matthew William Vanneman, MD
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
46%Service-mix similarity~5.5 milesView profile →
Ashley Michelle Peterson, MD
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
37%Service-mix similarity~5.5 milesView profile →
Jessica Louise Brodt, MBBS
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
33%Service-mix similarity~5.5 milesView profile →
Joseph Chong-De Kwok, M.D.
Anesthesiology · Mountain View, CA
Shared published services1 shared services · view billing descriptions
33%Service-mix similarity~9.6 milesView profile →
Ethan C Jackson, MD
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
31%Service-mix similarity~5.5 milesView profile →
Igor Feinstein, MD, PHD
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
31%Service-mix similarity~5.5 milesView profile →
Patrick Soran, M.D.
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
29%Service-mix similarity~5.5 milesView profile →
Taoyuan Robert Feng, MD
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
28%Service-mix similarity~5.5 milesView profile →
Albert Hwa-Wei Tsai, MD
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
28%Service-mix similarity~5.5 milesView profile →
Nathaniel Alan Ponstein, M.D.
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
27%Service-mix similarity~5.5 milesView profile →
Aaron Matthew Mittel, MD
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
26%Service-mix similarity~5.5 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.