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Compare the published Medicare service mix of Nelly Tan, MD with clinicians in the same registry specialty: Diagnostic Radiology · Radiation Oncology (CMS).

CA · Exact areaEdit location

2024 published service data · 449 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Hailey Hye-In Choi, M.D.

Diagnostic Radiology (CMS) · Palo Alto, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Mri scan of abdomen before and after contrast (74183)
  • Ct scan of abdomen and pelvis without contrast (74176)
52%Service-mix similarityView profile →

Kevin Day, MD

Diagnostic Radiology (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Mri scan of abdomen before and after contrast (74183)
  • Ct scan of abdomen and pelvis without contrast (74176)
39%Service-mix similarityView profile →

Adam Luce Bartret, M.D.

Diagnostic Radiology (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Mri scan of abdomen before and after contrast (74183)
  • Ct scan of abdomen and pelvis without contrast (74176)
30%Service-mix similarityView profile →

Charles E. Fiske, M.D.

Diagnostic Radiology (CMS) · Oakland, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Mri scan of abdomen before and after contrast (74183)
  • Ct scan of abdomen and pelvis without contrast (74176)
27%Service-mix similarityView profile →

Arash Gabayan, M.D.

Radiation Oncology (CMS) · Beverly Hills, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Mri scan of abdomen before and after contrast (74183)
  • Ct scan of abdomen and pelvis without contrast (74176)
23%Service-mix similarityView profile →

Farhan Syed Amanullah, MD

Diagnostic Radiology (CMS) · Stanford, CA

Shared published services
1 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
18%Service-mix similarityView profile →

Michael J. Faer, M.D.

Diagnostic Radiology (CMS) · Oakland, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis without contrast (74176)
  • X-ray of abdomen, 1 view (74018)
  • Ct scan of abdomen and pelvis before and after contrast (74178)
12%Service-mix similarityView profile →

David P Schreiber, M.D.

Radiation Oncology (CMS) · Rancho Mirage, CA

Shared published services
2 shared services · view billing descriptions
  • Mri scan of pelvis before and after contrast (72197)
  • Imaging guidance for procedure, 60 minutes or less (76000)
9%Service-mix similarityView profile →

Alireza Mahmoudieh, MD

Radiation Oncology (CMS) · Merced, CA

Shared published services
2 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis without contrast (74176)
  • Ct scan of abdomen and pelvis before and after contrast (74178)
8%Service-mix similarityView profile →

Brian Chou, MD

Radiation Oncology (CMS) · San Diego, CA

Shared published services
1 shared services · view billing descriptions
  • Mri scan of pelvis before and after contrast (72197)
5%Service-mix similarityView profile →

Steven Warren Davis, M.D.

Radiation Oncology (CMS) · Orange, CA

Shared published services
1 shared services · view billing descriptions
  • Mri scan of pelvis before and after contrast (72197)
5%Service-mix similarityView profile →

Sander B Saidman, M.D.

Diagnostic Radiology (CMS) · Redding, CA

Shared published services
1 shared services · view billing descriptions
  • X-ray of abdomen, 1 view (74018)
5%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.