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Compare the published Medicare service mix of Ramin Sam, M.D. with clinicians in the same registry specialty: Internal Medicine · Nephrology (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.

Mitra Sheena Jamshidian

Internal Medicine · Nephrology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Dialysis services, 4 or more physician visits per month (20 years or older) (90960)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hemodialysis procedure with physician evaluation (90935)
90%Service-mix similarityView profile →

Delphine Sonya Tuot, MD

Internal Medicine · Nephrology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Dialysis services, 4 or more physician visits per month (20 years or older) (90960)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hemodialysis procedure with physician evaluation (90935)
88%Service-mix similarityView profile →

Fred Y H Lui, M.D.

Nephrology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Dialysis services, 4 or more physician visits per month (20 years or older) (90960)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hemodialysis procedure with physician evaluation (90935)
77%Service-mix similarityView profile →

John Eric Demko, M.D.

Internal Medicine · Nephrology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
77%Service-mix similarityView profile →

Chi Chu

Nephrology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
73%Service-mix similarityView profile →

Gabriel Loeb, M.D., PH.D.

Internal Medicine · Nephrology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
71%Service-mix similarityView profile →

Pascale Khairallah, MD

Nephrology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hemodialysis procedure with physician evaluation (90935)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
71%Service-mix similarityView profile →

Joshua Ian Bernstein, M.D.

Internal Medicine · Nephrology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Dialysis services, 4 or more physician visits per month (20 years or older) (90960)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
65%Service-mix similarityView profile →

Benjamin J Lee, MD, MAS

Nephrology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Dialysis services, 4 or more physician visits per month (20 years or older) (90960)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hemodialysis procedure with physician evaluation (90935)
62%Service-mix similarityView profile →

Sepehr Keyhani, MD

Internal Medicine · Nephrology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Dialysis services, 4 or more physician visits per month (20 years or older) (90960)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
57%Service-mix similarityView profile →

Raymond K. Hsu, M.D.

Nephrology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
57%Service-mix similarityView profile →

Laalasa Varanasi, M.D.

Internal Medicine · Nephrology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
56%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.