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Compare the published Medicare service mix of Mohamed T Hassanein, M.D. PH.D. M.P.H. with clinicians in the same registry specialty: Cardiac Surgery · Thoracic Surgery (CMS).

SAN DIEGO, CA · Exact areaEdit location

2024 published service data · 19 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Craig R Larson

General Surgery · Thoracic Surgery (CMS) · San Diego, CA

Shared published services
2 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Exclusion of appendage of left upper chamber of heart performed during other procedure on chest (33268)
61%Service-mix similarityView profile →

Seemal Mumtaz, M.D.

General Surgery · Thoracic Surgery (CMS) · San Diego, CA

Shared published services
2 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
44%Service-mix similarityView profile →

James R. Hemp, M.D.

Cardiac Surgery · General Surgery · Thoracic Surgery · Vascular Surgery (CMS) · San Diego, CA

Shared published services
2 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
43%Service-mix similarityView profile →

Karl Kevin Limmer, M.D

General Surgery (CMS) · San Diego, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
34%Service-mix similarityView profile →

Daniel Lawrence Gramins, M.D.

Cardiac Surgery (CMS) · San Diego, CA

Shared published services
1 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
31%Service-mix similarityView profile →

Eugene M Golts, M.D.

Thoracic Surgery · Vascular Surgery (CMS) · San Diego, CA

Shared published services
1 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
30%Service-mix similarityView profile →

Eriberto Michel, MD

Thoracic Surgery (CMS) · San Diego, CA

Shared published services
1 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
29%Service-mix similarityView profile →

Mark William Onaitis, MD

Thoracic Surgery (CMS) · San Diego, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
20%Service-mix similarityView profile →

Joshua August Boys, M.D.

Thoracic Surgery (CMS) · San Diego, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
16%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.