A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

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

BOSTON, MA · Exact areaEdit location

2024 published service data · 486 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Miriam Antoinette Bredella, MD

Diagnostic Radiology (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 3 views (73562)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
87%Service-mix similarityView profile →

Michael Keith Brooks

Diagnostic Radiology (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 3 views (73562)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
85%Service-mix similarityView profile →

Mohamed Jarraya, MD

Diagnostic Radiology (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 3 views (73562)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
83%Service-mix similarityView profile →

William Ewing Palmer, MD

Diagnostic Radiology · Internal Medicine (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 3 views (73562)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
82%Service-mix similarityView profile →

Rene Balza Romero, MD

Diagnostic Radiology (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 3 views (73562)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
81%Service-mix similarityView profile →

Tina Shiang, M.D.

Diagnostic Radiology (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 3 views (73562)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
81%Service-mix similarityView profile →

Joao Rafael Terneira Vicentini, MD

Diagnostic Radiology (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 3 views (73562)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
80%Service-mix similarityView profile →

Zachary Elijah Stewart, M.D.

Diagnostic Radiology (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 3 views (73562)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
80%Service-mix similarityView profile →

James Anderson Strahan, MD

Diagnostic Radiology (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 3 views (73562)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
79%Service-mix similarityView profile →

Ronald William Mercer, MD

Diagnostic Radiology (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 3 views (73562)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
79%Service-mix similarityView profile →

Sowmya Lakshmi Varada, M.D.

Diagnostic Radiology (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 3 views (73562)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
79%Service-mix similarityView profile →

Frank Joseph Simeone, MD

Diagnostic Radiology (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • X-ray of knee, 3 views (73562)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
78%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.