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Compare the published Medicare service mix of Laszlo Karoly Szidonya, MD, PHD with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

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.

Nadine Mallak, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Nuclear medicine study from skull base to mid-thigh with ct scan (78815)
  • Nuclear medicine study whole body with ct scan (78816)
  • Nuclear medicine study of bone and/or joint whole body (78306)
63%Service-mix similarityView profile →

James Curtis Anderson, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of brain before and after contrast (70553)
  • Ct scan of blood vessels of head with contrast (70496)
60%Service-mix similarityView profile →

Trevor Thompson, M.D.

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of brain before and after contrast (70553)
  • Ct scan of blood vessels of head with contrast (70496)
54%Service-mix similarityView profile →

Joao Prola Netto, M.D.

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

Shared published services
3 shared services · view billing descriptions
  • Nuclear medicine study from skull base to mid-thigh with ct scan (78815)
  • Nuclear medicine study whole body with ct scan (78816)
  • Nuclear medicine study of bone and/or joint whole body (78306)
54%Service-mix similarityView profile →

Louis P. Riccelli, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of brain before and after contrast (70553)
  • Ct scan of blood vessels of head with contrast (70496)
53%Service-mix similarityView profile →

Jeffrey Robert Cagley, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Nuclear medicine study from skull base to mid-thigh with ct scan (78815)
  • Nuclear medicine study of bone and/or joint whole body (78306)
  • Ct scan head or brain without contrast (70450)
52%Service-mix similarityView profile →

Jaclyn Thiessen

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of brain before and after contrast (70553)
  • Ct scan of blood vessels of head with contrast (70496)
51%Service-mix similarityView profile →

David Pettersson, M.D.

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of brain before and after contrast (70553)
  • Ct scan of blood vessels of head with contrast (70496)
50%Service-mix similarityView profile →

Darshan Acharya, M.D.

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Nuclear medicine study from skull base to mid-thigh with ct scan (78815)
  • Nuclear medicine study of bone and/or joint whole body (78306)
  • Ct scan head or brain without contrast (70450)
50%Service-mix similarityView profile →

Joshua Paul Nickerson, M.D.

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of brain before and after contrast (70553)
  • Ct scan of blood vessels of head with contrast (70496)
47%Service-mix similarityView profile →

Arzu Ozturk, M.D.

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of brain before and after contrast (70553)
  • Ct scan of blood vessels of head with contrast (70496)
46%Service-mix similarityView profile →

Ronald Kizziar, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of brain before and after contrast (70553)
  • Ct scan of blood vessels of head with contrast (70496)
44%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.