A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Richard S. Chang, M.D. with clinicians in the same registry specialty: Specialty details in registry.

SANTA MONICA, CA · Exact areaEdit location

2024 published service data · 42 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Leonard Tsung-Wei Ong, M.D.

Diagnostic Radiology (CMS) · Santa Monica, CA

Shared published services
3 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
68%Service-mix similarityView profile →

Bruce Yawitz, M.D.

Diagnostic Radiology (CMS) · Santa Monica, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
  • Ct scan of chest without contrast (71250)
63%Service-mix similarityView profile →

Omid Jafari, MD

Diagnostic Radiology (CMS) · Santa Monica, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
  • X-ray of knee, 4 or more views (73564)
61%Service-mix similarityView profile →

Amir Hossein Talebi Liasi, M.D.

Diagnostic Radiology (CMS) · Santa Monica, CA

Shared published services
3 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
60%Service-mix similarityView profile →

Theodore Allen Hittle, M.D.

Diagnostic Radiology (CMS) · Santa Monica, CA

Shared published services
3 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
60%Service-mix similarityView profile →

Jeffrey Rappleye, M.D.

Diagnostic Radiology (CMS) · Santa Monica, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
  • X-ray of knee, 4 or more views (73564)
59%Service-mix similarityView profile →

Gerald M Roth, MD

Diagnostic Radiology (CMS) · Santa Monica, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
  • Ct scan of chest without contrast (71250)
59%Service-mix similarityView profile →

Edward Zaragoza, MD

Diagnostic Radiology (CMS) · Santa Monica, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
  • Ct scan of chest without contrast (71250)
58%Service-mix similarityView profile →

Jack Berman, MD

Diagnostic Radiology (CMS) · Santa Monica, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
  • X-ray of knee, 4 or more views (73564)
58%Service-mix similarityView profile →

Richard L Goldman, MD

Diagnostic Radiology (CMS) · Santa Monica, CA

Shared published services
3 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
57%Service-mix similarityView profile →

Vicki L. Schiller, M.D.

Diagnostic Radiology (CMS) · Santa Monica, CA

Shared published services
3 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
56%Service-mix similarityView profile →

Waleed Qaisi, MD

Diagnostic Radiology (CMS) · Santa Monica, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
  • Ct scan of chest without contrast (71250)
55%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.