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Compare the published Medicare service mix of Giang Nguyen, MD with clinicians in the same registry specialty: Diagnostic Radiology · Nuclear Medicine (CMS).

SANTA BARBARA, CA · Exact areaEdit location

2024 published service data · 49 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

John D Wrench, MD

Diagnostic Radiology (CMS) · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of lower and sacral spine, 2-3 views (72100)
67%Service-mix similarityView profile →

Jason Edward Barksdale, MD

Diagnostic Radiology (CMS) · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of lower and sacral spine, 2-3 views (72100)
67%Service-mix similarityView profile →

John Patrick Wheelock, M.D.

Diagnostic Radiology (CMS) · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of lower and sacral spine, 2-3 views (72100)
67%Service-mix similarityView profile →

Thu Trong Le, M.D.

Diagnostic Radiology (CMS) · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of lower and sacral spine, 2-3 views (72100)
66%Service-mix similarityView profile →

Jacob Lawrence Harter, M.D.

Diagnostic Radiology (CMS) · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of lower and sacral spine, 2-3 views (72100)
66%Service-mix similarityView profile →

John Yoon, M.D.

Diagnostic Radiology (CMS) · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of lower and sacral spine, 2-3 views (72100)
65%Service-mix similarityView profile →

Spencer E Price, MD

Diagnostic Radiology (CMS) · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of lower and sacral spine, 2-3 views (72100)
65%Service-mix similarityView profile →

Matthew Backer, M.D.

Diagnostic Radiology (CMS) · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of lower and sacral spine, 2-3 views (72100)
64%Service-mix similarityView profile →

Christopher Douglas Kuzminski, M.D.

Diagnostic Radiology (CMS) · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of lower and sacral spine, 2-3 views (72100)
64%Service-mix similarityView profile →

Joseph A. Luna, M.D.

Diagnostic Radiology · Internal Medicine (CMS) · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • X-ray of lower and sacral spine, 2-3 views (72100)
  • Ct scan of chest without contrast (71250)
64%Service-mix similarityView profile →

William Albert Deruso, MD

Diagnostic Radiology (CMS) · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of lower and sacral spine, 2-3 views (72100)
62%Service-mix similarityView profile →

Steven Hartzman, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • X-ray of lower and sacral spine, 2-3 views (72100)
  • Ct scan of chest without contrast (71250)
62%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.