A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Duke Nguyen, M.D. with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

SANTA ANA, CA · Exact areaEdit location

2024 published service data · 12 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jessica Langer, MD

Diagnostic Radiology (CMS) · Santa Ana, CA

Shared published services
3 shared services · view billing descriptions
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
  • Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)
65%Service-mix similarityView profile →

Laszlo Phillip Kaveggia, M.D.

Diagnostic Radiology (CMS) · Santa Ana, CA

Shared published services
3 shared services · view billing descriptions
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
  • Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)
62%Service-mix similarityView profile →

David Leonard Rodibaugh, M.D.

Diagnostic Radiology (CMS) · Santa Ana, CA

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)
  • Ct scan of chest without contrast (71250)
27%Service-mix similarityView profile →

Martin W. Wieler, M.D.

Diagnostic Radiology (CMS) · Santa Ana, CA

Shared published services
2 shared services · view billing descriptions
  • Mri scan of leg joint without contrast (73721)
  • Mri scan of arm joint without contrast (73221)
21%Service-mix similarityView profile →

Michael David Brown, D.O.

Diagnostic Radiology (CMS) · Santa Ana, CA

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)
  • Ct scan of chest without contrast (71250)
20%Service-mix similarityView profile →

Joseph John Brugman, M.D.

Diagnostic Radiology (CMS) · Santa Ana, CA

Shared published services
2 shared services · view billing descriptions
  • Mri scan of leg joint without contrast (73721)
  • Ct scan of chest without contrast (71250)
18%Service-mix similarityView profile →

Mark Geoffery Stein, M.D.

Diagnostic Radiology (CMS) · Santa Ana, CA

Shared published services
2 shared services · view billing descriptions
  • Mri scan of leg joint without contrast (73721)
  • Ct scan of chest without contrast (71250)
15%Service-mix similarityView profile →

Christina Ma, M.D.

Diagnostic Radiology (CMS) · Santa Ana, CA

Shared published services
1 shared services · view billing descriptions
  • Ct scan of chest without contrast (71250)
5%Service-mix similarityView profile →

Patricia Kay Kincaid, M.D.

Diagnostic Radiology (CMS) · Santa Ana, CA

Shared published services
1 shared services · view billing descriptions
  • Ct scan of chest without contrast (71250)
3%Service-mix similarityView profile →

Saif Haq Siddiqi, M.D.

Diagnostic Radiology (CMS) · Santa Ana, CA

Shared published services
1 shared services · view billing descriptions
  • Ct scan of chest without contrast (71250)
3%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.