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Compare the published Medicare service mix of Andrew Chiu, MD with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

STANFORD, CA · Exact areaEdit location

2024 published service data · 25 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Syed Safiuddin Hashmi, MD

Diagnostic Radiology (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of brain without contrast (70551)
  • X-ray of chest, 1 view (71045)
  • Ct scan of blood vessels of head with contrast (70496)
49%Service-mix similarityView profile →

Ghiam Yamin, M.D.

Diagnostic Radiology (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of brain without contrast (70551)
  • X-ray of chest, 1 view (71045)
  • Ct scan of blood vessels of head with contrast (70496)
48%Service-mix similarityView profile →

Frank Kuo, MD

Diagnostic Radiology (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of brain without contrast (70551)
  • X-ray of chest, 1 view (71045)
  • Ct scan of blood vessels of head with contrast (70496)
47%Service-mix similarityView profile →

Raag D Airan, MD

Diagnostic Radiology (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of brain without contrast (70551)
  • Ct scan of blood vessels of head with contrast (70496)
  • Ct scan of blood vessels of neck with contrast (70498)
46%Service-mix similarityView profile →

Gregory George Zaharchuck, MD

Diagnostic Radiology (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of brain without contrast (70551)
  • Ct scan of blood vessels of head with contrast (70496)
  • Ct scan of blood vessels of neck with contrast (70498)
46%Service-mix similarityView profile →

Lotfi Hacein-Bey, MD

Diagnostic Radiology (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of brain without contrast (70551)
  • Ct scan of blood vessels of head with contrast (70496)
  • Ct scan of blood vessels of neck with contrast (70498)
46%Service-mix similarityView profile →

Tarik Fathy Massoud, MD

Diagnostic Radiology (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of brain without contrast (70551)
  • Ct scan of blood vessels of head with contrast (70496)
  • Ct scan of blood vessels of neck with contrast (70498)
46%Service-mix similarityView profile →

Nancy Jane Fischbein, M.D.

Diagnostic Radiology (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of brain without contrast (70551)
  • Ct scan of blood vessels of head with contrast (70496)
  • Ct scan of blood vessels of neck with contrast (70498)
46%Service-mix similarityView profile →

Michael Maroun Zeineh, MD, PHD

Diagnostic Radiology (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of brain without contrast (70551)
  • Ct scan of blood vessels of head with contrast (70496)
  • Ct scan of blood vessels of neck with contrast (70498)
45%Service-mix similarityView profile →

Johannes Hugo Decker, MD

Diagnostic Radiology (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of brain without contrast (70551)
  • Ct scan of blood vessels of head with contrast (70496)
  • Ct scan of blood vessels of neck with contrast (70498)
45%Service-mix similarityView profile →

Michael Iv, MD

Diagnostic Radiology (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of brain without contrast (70551)
  • Ct scan of blood vessels of head with contrast (70496)
  • Ct scan of blood vessels of neck with contrast (70498)
45%Service-mix similarityView profile →

Ruchir Chaudhari, MD

Diagnostic Radiology (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of brain without contrast (70551)
  • Ct scan of blood vessels of head with contrast (70496)
  • Ct scan of blood vessels of neck with contrast (70498)
44%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.