A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Mary K Oboyle, M.D. with clinicians in the same registry specialty: Diagnostic Radiology · Interventional Radiology (CMS).

SAN DIEGO, CA · Exact areaEdit location

2024 published service data · 231 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Yonatan Zvi Samuel Rotman, MD

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
1 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
63%Service-mix similarityView profile →

Karl Grunseich, M.D.

Interventional Radiology (CMS) · San Diego, CA

Shared published services
1 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
63%Service-mix similarityView profile →

Mike Hyun Lee, M.D.

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ultrasound scan of head and neck soft tissue (76536)
  • Complete ultrasound scan behind abdominal cavity (76770)
55%Service-mix similarityView profile →

Derek Colburn Rycewicz, MD

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ultrasound scan of head and neck soft tissue (76536)
  • Complete ultrasound scan behind abdominal cavity (76770)
55%Service-mix similarityView profile →

Ravikumar Hanumaiah, MD

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Complete ultrasound scan behind abdominal cavity (76770)
  • Limited ultrasound scan of abdomen (76705)
54%Service-mix similarityView profile →

Cairine Mcnamee, M.D.

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ultrasound scan of head and neck soft tissue (76536)
  • Complete ultrasound scan behind abdominal cavity (76770)
53%Service-mix similarityView profile →

Cynthia S Santillan, M.D.

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ultrasound scan of head and neck soft tissue (76536)
  • Complete ultrasound scan behind abdominal cavity (76770)
53%Service-mix similarityView profile →

Joy Liau, M.D. PH.D.

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ultrasound scan of head and neck soft tissue (76536)
  • Complete ultrasound scan behind abdominal cavity (76770)
53%Service-mix similarityView profile →

Dorathy Elaine Tamayo-Murillo, MD

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ultrasound scan of head and neck soft tissue (76536)
  • Complete ultrasound scan behind abdominal cavity (76770)
53%Service-mix similarityView profile →

Robert M Marks, M.D.

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ultrasound scan of head and neck soft tissue (76536)
  • Complete ultrasound scan behind abdominal cavity (76770)
52%Service-mix similarityView profile →

Christine M Boatright, M.D.

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ultrasound scan of head and neck soft tissue (76536)
  • Complete ultrasound scan behind abdominal cavity (76770)
50%Service-mix similarityView profile →

Michael Eric Hahn, MD, PHD

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ultrasound scan of head and neck soft tissue (76536)
  • Complete ultrasound scan behind abdominal cavity (76770)
50%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.