A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Edward Chapin Thornborrow, MD PHD with clinicians in the same registry specialty: Pathology (CMS).

SAN FRANCISCO, CA · Exact areaEdit location

2024 published service data · 41 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

William J. Karlon, M.D.

Hematology · Pathology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Flow cytometry technique for dna or cell analysis, 16 or more markers (88189)
  • Flow cytometry technique for dna or cell analysis, 9 to 15 markers (88188)
  • Antibody evaluation, initial single antibody stain procedure (88346)
98%Service-mix similarityView profile →

Judith Ann Doyle, M.D.

Pathology (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Flow cytometry technique for dna or cell analysis, 16 or more markers (88189)
11%Service-mix similarityView profile →

Thuy Bao Nguyen, M.D.

Pathology (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Flow cytometry technique for dna or cell analysis, 16 or more markers (88189)
9%Service-mix similarityView profile →

Ian Mathias Jaffee, M.D.

Pathology (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Flow cytometry technique for dna or cell analysis, 16 or more markers (88189)
9%Service-mix similarityView profile →

Georgios Deftereos, M.D.

Pathology (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Molecular pathology procedure; physician interpretation and report (G0452)
8%Service-mix similarityView profile →

Andrew Joseph Bandy, M.D.

Pathology (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Flow cytometry technique for dna or cell analysis, 16 or more markers (88189)
8%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.