A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

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

MADISON, WI · Exact areaEdit location

2024 published service data · 130 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

John Michael Nessim Khalil, MD

Diagnostic Radiology (CMS) · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Mri scan of leg joint without contrast (73721)
  • X-ray of chest, 1 view (71045)
79%Service-mix similarityView profile →

Brian Keegan Markhardt, MD

Diagnostic Radiology (CMS) · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Mri scan of leg joint without contrast (73721)
  • X-ray of chest, 1 view (71045)
74%Service-mix similarityView profile →

Jeffrey David Swick, M.D.

Diagnostic Radiology (CMS) · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Mri scan of leg joint without contrast (73721)
  • X-ray of chest, 1 view (71045)
73%Service-mix similarityView profile →

Newrhee Kim, MD

Diagnostic Radiology (CMS) · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
71%Service-mix similarityView profile →

Christopher G Guglielmo, M.D.

Diagnostic Radiology (CMS) · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
71%Service-mix similarityView profile →

Garrett Woodbury, M.D.

Diagnostic Radiology (CMS) · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Mri scan of leg joint without contrast (73721)
  • X-ray of chest, 1 view (71045)
71%Service-mix similarityView profile →

John K Park, MD

Specialty details in registry · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
69%Service-mix similarityView profile →

Zachary Stephen Borden, M.D.

Diagnostic Radiology (CMS) · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
69%Service-mix similarityView profile →

Mitchell Daun

Diagnostic Radiology (CMS) · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Mri scan of leg joint without contrast (73721)
  • X-ray of chest, 1 view (71045)
69%Service-mix similarityView profile →

Michael Edward Larson, MD

Diagnostic Radiology (CMS) · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
68%Service-mix similarityView profile →

Minnie W. Kieler, MD

Diagnostic Radiology (CMS) · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
68%Service-mix similarityView profile →

Giustino Patrizio Luca Albanese, M.D.

Diagnostic Radiology (CMS) · Madison, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Mri scan of leg joint without contrast (73721)
  • X-ray of chest, 1 view (71045)
68%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.