A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Chara Elaine Rydzak, MD 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.

En-Haw Wu, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of chest without contrast (71250)
  • X-ray of chest, 2 views (71046)
96%Service-mix similarityView profile →

Raluca Mccallum, M.D.

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of chest without contrast (71250)
  • X-ray of chest, 2 views (71046)
94%Service-mix similarityView profile →

Cristina Fuss, M.D.

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of chest without contrast (71250)
  • X-ray of chest, 2 views (71046)
84%Service-mix similarityView profile →

Joseph Laurence Whetstone, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of chest without contrast (71250)
  • X-ray of chest, 2 views (71046)
83%Service-mix similarityView profile →

Toshinori Fukuda, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of chest without contrast (71250)
  • X-ray of chest, 2 views (71046)
80%Service-mix similarityView profile →

Charles A Kosydar, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of chest without contrast (71250)
  • X-ray of chest, 2 views (71046)
67%Service-mix similarityView profile →

Phillip D Baker, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of chest without contrast (71250)
  • X-ray of chest, 2 views (71046)
63%Service-mix similarityView profile →

Veronica Sue

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of chest without contrast (71250)
  • X-ray of chest, 2 views (71046)
63%Service-mix similarityView profile →

Matthew Biron, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of chest without contrast (71250)
  • X-ray of chest, 2 views (71046)
61%Service-mix similarityView profile →

Spencer Bradley Lewis, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of chest without contrast (71250)
  • X-ray of chest, 2 views (71046)
60%Service-mix similarityView profile →

Kyle Kristopher Jensen, M.D.

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of chest without contrast (71250)
  • X-ray of chest, 2 views (71046)
57%Service-mix similarityView profile →

Mikhail L Nekhline, MD

Diagnostic Radiology (CMS) · Portland, OR

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of chest without contrast (71250)
  • X-ray of chest, 2 views (71046)
56%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.