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Compare the published Medicare service mix of Nathaniel Alan Ponstein, M.D. with clinicians in the same registry specialty: Anesthesiology.

STANFORD, CA · Exact areaEdit location

2024 published service data · 180 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Charles Hugh Brown, MD

Anesthesiology · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Insertion of probe in esophagus for heart ultrasound (93313)
  • Insertion of non-tunneled central venous tube for infusion (5 years or older) (36556)
55%Service-mix similarityView profile →

Marie Lapenta Mchenry, MD

Anesthesiology · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasonic guidance for blood vessel access (76937)
  • Insertion of non-tunneled central venous tube for infusion (5 years or older) (36556)
50%Service-mix similarityView profile →

Michael Ongele, MD

Anesthesiology · Stanford, CA

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasonic guidance for blood vessel access (76937)
50%Service-mix similarityView profile →

Sunita Garikipati Sastry, MD

Anesthesiology · Stanford, CA

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for procedure to assess heart electrical activity (00537)
49%Service-mix similarityView profile →

Philippa Eileen Suzette Davis, MD

Anesthesiology · Stanford, CA

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for procedure to assess heart electrical activity (00537)
46%Service-mix similarityView profile →

Patrick Soran, M.D.

Anesthesiology · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for procedure to assess heart electrical activity (00537)
  • Ultrasonic guidance for blood vessel access (76937)
45%Service-mix similarityView profile →

Praveen Kalra, MD

Anesthesiology · Stanford, CA

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for procedure to assess heart electrical activity (00537)
44%Service-mix similarityView profile →

Jed Adam Cohn, M.D.

Anesthesiology · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasonic guidance for blood vessel access (76937)
  • Ultrasonic guidance for needle placement (76942)
44%Service-mix similarityView profile →

Clemens Maria Ortner, MD

Anesthesiology · Stanford, CA

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
43%Service-mix similarityView profile →

Jalal Kenji Baruni, MD

Anesthesiology · Stanford, CA

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
43%Service-mix similarityView profile →

Natalya Sarah Hasan, MD

Anesthesiology · Stanford, CA

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
43%Service-mix similarityView profile →

Martin Stephan Angst, MD

Anesthesiology · Stanford, CA

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
43%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.