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Compare the published Medicare service mix of Annette Johnson, MD with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

AUGUSTA, GA · 100 milesEdit location
Within 100 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 32 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Fayyaz Barodawala, M.D.

Diagnostic Radiology (CMS) · Macon, GA

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Mri scan of brain before and after contrast (70553)
33%Service-mix similarity~99.1 milesView profile →

Jan Skrzypczak, MD

Interventional Radiology (CMS) · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Mri scan of brain before and after contrast (70553)
32%Service-mix similarity~96.2 milesView profile →

Christopher Thomas Mccarty, M.D.

Diagnostic Radiology (CMS) · West Columbia, SC

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Mri scan of brain before and after contrast (70553)
31%Service-mix similarity~68.7 milesView profile →

David N. Knight, M.D.

Interventional Radiology (CMS) · West Columbia, SC

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Mri scan of brain before and after contrast (70553)
31%Service-mix similarity~68.7 milesView profile →

Jonathan Eric Botstein, M.D.

Interventional Radiology (CMS) · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Mri scan of brain before and after contrast (70553)
30%Service-mix similarity~96.2 milesView profile →

Charles Michael Heaton, M.D.

Interventional Radiology (CMS) · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Mri scan of brain without contrast (70551)
28%Service-mix similarity~96.2 milesView profile →

Jonathan K West, MD

Diagnostic Radiology · Interventional Radiology (CMS) · West Columbia, SC

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Mri scan of brain before and after contrast (70553)
23%Service-mix similarity~68.7 milesView profile →

William P Brehmer, M.D.

Interventional Radiology (CMS) · West Columbia, SC

Shared published services
2 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
18%Service-mix similarity~68.7 milesView profile →

Carl Gunnar Forsberg, M.D.

Interventional Radiology (CMS) · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
18%Service-mix similarity~96.2 milesView profile →

George Richard Rueb, MD

Interventional Radiology (CMS) · West Columbia, SC

Shared published services
2 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
18%Service-mix similarity~68.7 milesView profile →

Henry Cooper Black, M.D.

Interventional Radiology (CMS) · Greenville, SC

Shared published services
2 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of brain without contrast (70551)
14%Service-mix similarity~96.2 milesView profile →

Michael John Ludkowski, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Greenville, SC

Shared published services
1 shared services · view billing descriptions
  • Ct scan of blood vessels of neck with contrast (70498)
14%Service-mix similarity~99.5 milesView 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 approximate distance 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.