A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

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

LA JOLLA, CA · Exact areaEdit location

2024 published service data · 47 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Tomer Abraham Roth, MD

Diagnostic Radiology (CMS) · La Jolla, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of lower spinal canal without contrast (72148)
  • Ct scan of upper spine without contrast (72125)
90%Service-mix similarityView profile →

Anila Jonnala, M.D.

Diagnostic Radiology (CMS) · La Jolla, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of lower spinal canal without contrast (72148)
  • Ct scan of upper spine without contrast (72125)
84%Service-mix similarityView profile →

Jerome C. Pierce, M.D.

Diagnostic Radiology (CMS) · La Jolla, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of lower spinal canal without contrast (72148)
  • Ct scan of upper spine without contrast (72125)
83%Service-mix similarityView profile →

Philip Hoang, M.D.

Diagnostic Radiology (CMS) · La Jolla, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of lower spinal canal without contrast (72148)
  • Ct scan of upper spine without contrast (72125)
82%Service-mix similarityView profile →

Kevin M Ishioka, M.D

Diagnostic Radiology (CMS) · La Jolla, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of lower spinal canal without contrast (72148)
  • Ct scan of upper spine without contrast (72125)
80%Service-mix similarityView profile →

Kristina M. Kjeldsberg, M.D.

Diagnostic Radiology (CMS) · La Jolla, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of lower spinal canal without contrast (72148)
  • Ct scan of upper spine without contrast (72125)
73%Service-mix similarityView profile →

Steven S. Eilenberg, M.D.

Diagnostic Radiology (CMS) · La Jolla, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of lower spinal canal without contrast (72148)
  • Ct scan of upper spine without contrast (72125)
71%Service-mix similarityView profile →

George E. Wesbey, M.D.

Diagnostic Radiology (CMS) · La Jolla, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of lower spinal canal without contrast (72148)
  • Ct scan of upper spine without contrast (72125)
69%Service-mix similarityView profile →

Kris J. Van Lom, M.D.

Diagnostic Radiology (CMS) · La Jolla, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of lower spinal canal without contrast (72148)
  • Ct scan of upper spine without contrast (72125)
66%Service-mix similarityView profile →

Michael Vincent Klein, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · La Jolla, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Mri scan of lower spinal canal without contrast (72148)
  • Ct scan of upper spine without contrast (72125)
62%Service-mix similarityView profile →

Wilbur Wang, M.D.

Diagnostic Radiology · General Practice (CMS) · La Jolla, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of upper spine without contrast (72125)
  • Mri scan of brain without contrast (70551)
62%Service-mix similarityView profile →

Ryan Harrison Penticuff, M.D.

Diagnostic Radiology (CMS) · La Jolla, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of upper spine without contrast (72125)
  • Mri scan of brain without contrast (70551)
62%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.