HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

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

CA · Exact areaEdit location

2024 published service data · 500 eligible profiles compared. This search reached its 500-profile comparison limit, using NPI order. Narrow the location for a more focused comparison. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Vinh Ngoc Nguyen, M.D.

Diagnostic Radiology (CMS) · Newport Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
82%Service-mix similarityView profile →

Mitchell Alan Berner, M.D.

Diagnostic Radiology (CMS) · Beverly Hills, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
81%Service-mix similarityView profile →

Bonnie Cary Freitas, M.D.

Diagnostic Radiology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
77%Service-mix similarityView profile →

Hollie Gallagher-Zate, DO

Diagnostic Radiology (CMS) · Beverly Hills, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
73%Service-mix similarityView profile →

Ameera Fouad Fareed Ismail, M.B., CH.B.

Diagnostic Radiology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
72%Service-mix similarityView profile →

Stephen Wayne. Metting, M.D.

Diagnostic Radiology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
68%Service-mix similarityView profile →

Nicholas D'alesio, DO, MPH

Diagnostic Radiology (CMS) · El Segundo, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
67%Service-mix similarityView profile →

Hatice Kader Karli Oguz, MD

Diagnostic Radiology (CMS) · Sacramento, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
66%Service-mix similarityView profile →

Daniel M. Helmy, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
60%Service-mix similarityView profile →

Nathan Matthew Kan, D.O.

Specialty details in registry · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
60%Service-mix similarityView profile →

Amar Yeshwant Purandare, MD

Diagnostic Radiology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
59%Service-mix similarityView profile →

Jose A Ospina, MD, PHD

Diagnostic Radiology · Nuclear Medicine (CMS) · Glendale, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
59%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.