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Compare the published Medicare service mix of Michael Dickinson Walker, M.D. with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

CARMEL, IN · Exact areaEdit location

2024 published service data · 12 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

George B Dunn, M.D.

Diagnostic Radiology (CMS) · Carmel, IN

Shared published services
3 shared services · view billing descriptions
  • Mri scan of leg joint without contrast (73721)
  • Mri scan of arm joint without contrast (73221)
  • Ct scan of leg without contrast (73700)
89%Service-mix similarityView profile →

Cortney Marie Sostarich, MD

Diagnostic Radiology (CMS) · Carmel, IN

Shared published services
3 shared services · view billing descriptions
  • Ct scan of leg without contrast (73700)
  • X-ray of shoulder, minimum of 2 views (73030)
  • Fluoroscopic guidance for needle placement (77002)
40%Service-mix similarityView profile →

Joseph A Veleeparambil, MD

Diagnostic Radiology (CMS) · Carmel, IN

Shared published services
3 shared services · view billing descriptions
  • Mri scan of leg joint without contrast (73721)
  • Mri scan of arm joint without contrast (73221)
  • Ct scan of leg without contrast (73700)
39%Service-mix similarityView profile →

Shane J Rose, M.D.

Diagnostic Radiology (CMS) · Carmel, IN

Shared published services
3 shared services · view billing descriptions
  • Ct scan of leg without contrast (73700)
  • X-ray of shoulder, minimum of 2 views (73030)
  • Ct scan of arm without contrast (73200)
36%Service-mix similarityView profile →

Pieter J Vanderlijn, M.D.

Diagnostic Radiology (CMS) · Carmel, IN

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of knee, 4 or more views (73564)
  • X-ray of hip, 2-3 views (73502)
30%Service-mix similarityView profile →

Susan J Meyer, M.D.

Diagnostic Radiology (CMS) · Carmel, IN

Shared published services
1 shared services · view billing descriptions
  • X-ray of hip, 2-3 views (73502)
20%Service-mix similarityView profile →

Charles A Lerner, MD

Diagnostic Radiology (CMS) · Carmel, IN

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis without contrast (74176)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ct scan of chest without contrast (71250)
15%Service-mix similarityView profile →

Michael B Hostetter, M.D.

Diagnostic Radiology · Interventional Pain Management (CMS) · Carmel, IN

Shared published services
3 shared services · view billing descriptions
  • X-ray of middle and lower spine, 2 views (72080)
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of lower spinal canal before and after contrast (72158)
12%Service-mix similarityView profile →

Kyle M Malecki, MD

Diagnostic Radiology (CMS) · Carmel, IN

Shared published services
2 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ct scan of chest without contrast (71250)
11%Service-mix similarityView profile →

Joseph Mansour, MD

Diagnostic Radiology (CMS) · Carmel, IN

Shared published services
2 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ct scan of chest without contrast (71250)
10%Service-mix similarityView profile →

Arthur Stanley Maynard, MD

Diagnostic Radiology (CMS) · Carmel, IN

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis without contrast (74176)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ct scan of chest without contrast (71250)
9%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.