HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Shahram Ahmadzadeh, M.D. with clinicians in the same registry specialty: Internal Medicine · Nephrology (CMS).

ROANOKE, VA · Exact areaEdit location

2024 published service data · 11 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ryan Dale Evans, MD

Internal Medicine · Nephrology (CMS) · Roanoke, VA

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist (36902)
  • 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)
50%Service-mix similarityView profile →

Rebin Thomas Titus, M.D.

Internal Medicine · Nephrology (CMS) · Roanoke, VA

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
37%Service-mix similarityView profile →

Edgar R Escasinas, M.D.

Internal Medicine · Nephrology (CMS) · Roanoke, VA

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)
33%Service-mix similarityView profile →

James S. Cain, M.D.

Specialty details in registry · Roanoke, VA

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)
32%Service-mix similarityView profile →

Debra C. Dooley, N.P.

Nurse Practitioner (CMS) · Roanoke, VA

Shared published services
2 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)
26%Service-mix similarityView profile →

Dennis Hu, MD

Internal Medicine · Nephrology (CMS) · Roanoke, VA

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)
26%Service-mix similarityView profile →

Fred Jackson Ballenger, M.D.

Specialty details in registry · Roanoke, VA

Shared published services
1 shared services · view billing descriptions
  • Dialysis services, 4 or more physician visits per month (20 years or older) (90960)
26%Service-mix similarityView profile →

Abdelaziz Ali Elsanjak, M.D.

Internal Medicine · Nephrology (CMS) · Roanoke, VA

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
18%Service-mix similarityView profile →

Matt Mathew, M.D.

Internal Medicine · Nephrology (CMS) · Roanoke, VA

Shared published services
2 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)
12%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.