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 Arthur Michael Williams, MD with clinicians in the same registry specialty: Internal Medicine.

HUNTSVILLE, AL · Exact areaEdit location

2024 published service data · 61 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Vivian Chambers Aboko-Cole Hicks, M.D.

Internal Medicine · Huntsville, AL

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
79%Service-mix similarityView profile →

Tiffany Elisse Schwasinger-Schmidt, MD

Internal Medicine · Huntsville, AL

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Hemoglobin a1c level (83036)
62%Service-mix similarityView profile →

Michel Farah, MD

Internal Medicine · Huntsville, AL

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
61%Service-mix similarityView profile →

Rohini Ramamoorthy

Internal Medicine · Huntsville, AL

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Hemoglobin a1c level (83036)
52%Service-mix similarityView profile →

Clement U Okinedo, M.D.

Internal Medicine · Huntsville, AL

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
51%Service-mix similarityView profile →

Peshitha Nimmagadda, MD

Internal Medicine · Huntsville, AL

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
48%Service-mix similarityView profile →

Dibyajiban Mahapatra, M.D.

Internal Medicine · Huntsville, AL

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Hemoglobin a1c level (83036)
48%Service-mix similarityView profile →

Zia U Hassan, M.D.

Internal Medicine · Huntsville, AL

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Hemoglobin a1c level (83036)
45%Service-mix similarityView profile →

Norman A. Sabio, M.D.

Internal Medicine · Huntsville, AL

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
44%Service-mix similarityView profile →

Yari P. Campbell, M.D.

Internal Medicine · Huntsville, AL

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Hemoglobin a1c level (83036)
44%Service-mix similarityView profile →

Anna Gann, MD

Internal Medicine · Huntsville, AL

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
44%Service-mix similarityView profile →

Roy Brian Roberts, M.D., P.C.

Internal Medicine · Huntsville, AL

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
42%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.