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Compare the published Medicare service mix of Ammar Almehmi with clinicians in the same registry specialty: Nephrology (CMS).

BIRMINGHAM, AL · Exact areaEdit location

2024 published service data · 44 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Alian Al-Balas

Internal Medicine · Nephrology (CMS) · Birmingham, AL

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)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
64%Service-mix similarityView profile →

James L Lewis, MD

Internal Medicine · Nephrology (CMS) · Birmingham, AL

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)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
60%Service-mix similarityView profile →

Yan Lu, MD

Nephrology (CMS) · Birmingham, AL

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hemodialysis procedure with physician evaluation (90935)
60%Service-mix similarityView profile →

Emmy Bell

Nephrology (CMS) · Birmingham, AL

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hemodialysis procedure with physician evaluation (90935)
57%Service-mix similarityView profile →

Timothy Alphonzo Williams, M.D.

Nephrology (CMS) · Birmingham, AL

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hemodialysis procedure with physician evaluation (90935)
57%Service-mix similarityView profile →

Norman Winn Gayle Seay, M.D.

Nephrology (CMS) · Birmingham, AL

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hemodialysis procedure with physician evaluation (90935)
55%Service-mix similarityView profile →

Efren Alejandro Chavez Morales, MD

Nephrology (CMS) · Birmingham, AL

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hemodialysis procedure with physician evaluation (90935)
55%Service-mix similarityView profile →

Ashita Tolwani

Nephrology (CMS) · Birmingham, AL

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hemodialysis procedure with physician evaluation (90935)
53%Service-mix similarityView profile →

Jason J Tsai, MD

Internal Medicine · Nephrology (CMS) · Birmingham, AL

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hemodialysis procedure with physician evaluation (90935)
51%Service-mix similarityView profile →

Michael Allon

Nephrology (CMS) · Birmingham, AL

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hemodialysis procedure with physician evaluation (90935)
50%Service-mix similarityView profile →

Mamatha Gandhi, MBBS

Internal Medicine · Nephrology (CMS) · Birmingham, AL

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hemodialysis procedure with physician evaluation (90935)
50%Service-mix similarityView profile →

Jared Michael Cook, M.D.

Nephrology (CMS) · Birmingham, AL

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hemodialysis procedure with physician evaluation (90935)
50%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.