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Compare the published Medicare service mix of Daniel Robert Kocarnik, MD with clinicians in the same registry specialty: Specialty details in registry.

PORTLAND, OR · Exact areaEdit location

2024 published service data · 136 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Csanad Gyorgy Varallyay, M.D., PH.D.

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Mri scan of brain without contrast (70551)
  • Ct scan of abdomen and pelvis with contrast (74177)
52%Service-mix similarityView profile →

Sanjay Chakrapani, M.D.

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Mri scan of brain without contrast (70551)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 2 views (71046)
51%Service-mix similarityView profile →

Matthew Biron, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 2 views (71046)
46%Service-mix similarityView profile →

Robert Israel, MD

Specialty details in registry · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 2 views (71046)
43%Service-mix similarityView profile →

Elizabeth Yutan, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Mri scan of brain without contrast (70551)
  • Ct scan of abdomen and pelvis with contrast (74177)
42%Service-mix similarityView profile →

David P Ciaverella, DO

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Mri scan of brain without contrast (70551)
  • Ct scan of abdomen and pelvis with contrast (74177)
39%Service-mix similarityView profile →

Priscilla Jane Wallace, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 2 views (71046)
38%Service-mix similarityView profile →

William Charles Fife, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Mri scan of brain without contrast (70551)
  • Ct scan of abdomen and pelvis with contrast (74177)
38%Service-mix similarityView profile →

Shahrzad Sharafi, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 2 views (71046)
38%Service-mix similarityView profile →

Hayley Oligane, D.O.

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Mri scan of brain without contrast (70551)
  • Ct scan of abdomen and pelvis with contrast (74177)
37%Service-mix similarityView profile →

Michael Neuman, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 2 views (71046)
37%Service-mix similarityView profile →

Stephen James Tang, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Mri scan of brain without contrast (70551)
  • Ct scan of abdomen and pelvis with contrast (74177)
36%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.