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

VANCOUVER, WA · Exact areaEdit location

2024 published service data · 27 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ly Ngoc Huynh, MD

Diagnostic Radiology (CMS) · Vancouver, WA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of leg joint without contrast (73721)
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of arm joint without contrast (73221)
58%Service-mix similarityView profile →

James M. Mcafee, M.D.

Diagnostic Radiology (CMS) · Vancouver, WA

Shared published services
3 shared services · view billing descriptions
  • X-ray of lower and sacral spine, 2-3 views (72100)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of foot, minimum of 3 views (73630)
52%Service-mix similarityView profile →

Erik Michael Velez, MD

Diagnostic Radiology · Nuclear Medicine (CMS) · Vancouver, WA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of lower and sacral spine, 2-3 views (72100)
  • X-ray of shoulder, minimum of 2 views (73030)
51%Service-mix similarityView profile →

Robert D Bloch, MD

Diagnostic Radiology · Interventional Radiology (CMS) · Vancouver, WA

Shared published services
3 shared services · view billing descriptions
  • X-ray of lower and sacral spine, 2-3 views (72100)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of foot, minimum of 3 views (73630)
51%Service-mix similarityView profile →

William G Kuhle, MD

Specialty details in registry · Vancouver, WA

Shared published services
3 shared services · view billing descriptions
  • X-ray of lower and sacral spine, 2-3 views (72100)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of foot, minimum of 3 views (73630)
51%Service-mix similarityView profile →

Junzi Shi, MD

Diagnostic Radiology (CMS) · Vancouver, WA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of leg joint without contrast (73721)
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of arm joint without contrast (73221)
50%Service-mix similarityView profile →

Phillip Adam Setran, MD

Diagnostic Radiology (CMS) · Vancouver, WA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Ct scan of leg without contrast (73700)
  • X-ray of lower and sacral spine, 2-3 views (72100)
47%Service-mix similarityView profile →

Elisa Christine Kelly Morgan, M.D.

Diagnostic Radiology (CMS) · Vancouver, WA

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)
  • X-ray of lower and sacral spine, 2-3 views (72100)
45%Service-mix similarityView profile →

Jonah I Zwemer, MD

Diagnostic Radiology (CMS) · Vancouver, WA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of lower and sacral spine, 2-3 views (72100)
  • X-ray of shoulder, minimum of 2 views (73030)
45%Service-mix similarityView profile →

Sunny Christopher Rhee, M.D.

Diagnostic Radiology (CMS) · Vancouver, WA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of lower and sacral spine, 2-3 views (72100)
  • X-ray of shoulder, minimum of 2 views (73030)
43%Service-mix similarityView profile →

Howard A Nelson, MD

Diagnostic Radiology (CMS) · Vancouver, WA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Ct scan of leg without contrast (73700)
  • X-ray of lower and sacral spine, 2-3 views (72100)
42%Service-mix similarityView profile →

John Wr Schroeder, M.D.

Diagnostic Radiology (CMS) · Vancouver, WA

Shared published services
3 shared services · view billing descriptions
  • X-ray of lower and sacral spine, 2-3 views (72100)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of foot, minimum of 3 views (73630)
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.