A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

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

WALNUT CREEK, CA · Exact areaEdit location

2024 published service data · 62 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Vishal Panchal, M.D.

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Mri scan of leg joint without contrast (73721)
  • Mri scan of arm joint without contrast (73221)
86%Service-mix similarityView profile →

Saurabh Patel, M.D.

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Mri scan of leg joint without contrast (73721)
  • Mri scan of arm joint without contrast (73221)
81%Service-mix similarityView profile →

Aseem Om Rawal, M.D.

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Mri scan of leg joint without contrast (73721)
  • Mri scan of arm joint without contrast (73221)
80%Service-mix similarityView profile →

Siva P Raman

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of chest, 2 views (71046)
  • Ct scan of abdomen and pelvis with contrast (74177)
79%Service-mix similarityView profile →

William Hoddick, M.D.

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of chest, 2 views (71046)
  • Ct scan of abdomen and pelvis with contrast (74177)
77%Service-mix similarityView profile →

Chul Young Chung, M.D.

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Mri scan of leg joint without contrast (73721)
  • Mri scan of arm joint without contrast (73221)
76%Service-mix similarityView profile →

Patrick R Ryan, MD

Diagnostic Radiology · Interventional Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Mri scan of leg joint without contrast (73721)
  • Mri scan of arm joint without contrast (73221)
76%Service-mix similarityView profile →

Stephen Hesseltine, M.D.

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Mri scan of leg joint without contrast (73721)
  • Mri scan of arm joint without contrast (73221)
74%Service-mix similarityView profile →

George Chu, MD

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Mri scan of leg joint without contrast (73721)
  • Mri scan of arm joint without contrast (73221)
74%Service-mix similarityView profile →

Christopher M. Krol, MD

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of chest, 2 views (71046)
  • Ct scan of abdomen and pelvis with contrast (74177)
72%Service-mix similarityView profile →

Kimberly M. Blumberg, M.D

Specialty details in registry · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of chest, 2 views (71046)
  • Ct scan of abdomen and pelvis with contrast (74177)
72%Service-mix similarityView profile →

Sunil Gandhi, M.D.

Diagnostic Radiology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of chest, 2 views (71046)
  • Ct scan of abdomen and pelvis with contrast (74177)
72%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.