A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of John William Walton, MD with clinicians in the same registry specialty: Diagnostic Radiology · Interventional Radiology (CMS).

OAKLAND, CA · Exact areaEdit location

2024 published service data · 45 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Romy Chung Ott, MD

Diagnostic Radiology (CMS) · Oakland, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
93%Service-mix similarityView profile →

Samuel I. Baronofsky, MD

Diagnostic Radiology (CMS) · Oakland, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
93%Service-mix similarityView profile →

Bebe H Young, MD

Diagnostic Radiology (CMS) · Oakland, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
93%Service-mix similarityView profile →

Alice Cindy Yu

Diagnostic Radiology (CMS) · Oakland, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
91%Service-mix similarityView profile →

Shilpa R. Kumbhani, MD

Diagnostic Radiology (CMS) · Oakland, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
87%Service-mix similarityView profile →

Amin Matin, M.D., M.P.H.

Diagnostic Radiology (CMS) · Oakland, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
86%Service-mix similarityView profile →

David B. Lim, MD

Diagnostic Radiology (CMS) · Oakland, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
85%Service-mix similarityView profile →

Derek S. Kubota, MD

Diagnostic Radiology (CMS) · Oakland, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
84%Service-mix similarityView profile →

John Downey, M.D.

Diagnostic Radiology (CMS) · Oakland, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • X-ray of chest, 2 views (71046)
84%Service-mix similarityView profile →

Stephen Shih-Hsiung Chan, MD

Diagnostic Radiology (CMS) · Oakland, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 2 views (71046)
81%Service-mix similarityView profile →

Jeffrey F. Rueda, MD

Diagnostic Radiology (CMS) · Oakland, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
79%Service-mix similarityView profile →

Abhiram Nagaraj, MD

Diagnostic Radiology (CMS) · Oakland, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
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.