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Compare the published Medicare service mix of Mark Joseph Kearns, M.D. 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.

Ian Clark Glenn, M.D.

Cardiac Surgery (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
80%Service-mix similarityView profile →

Gert Diederick Victor Pretorius, MD

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

Shared published services
3 shared services · view billing descriptions
  • Transplantation of donor heart (33945)
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Preparation of donor heart for transplantation (33944)
68%Service-mix similarityView profile →

Christine Montesa, MD

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

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
54%Service-mix similarityView profile →

Daniel Lawrence Gramins, M.D.

Cardiac Surgery (CMS) · San Diego, CA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Harvest of vein using an endoscope (33508)
49%Service-mix similarityView profile →

James R. Hemp, M.D.

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

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
37%Service-mix similarityView profile →

Eugene M Golts, M.D.

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

Shared published services
2 shared services · view billing descriptions
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
34%Service-mix similarityView profile →

Eriberto Michel, MD

Thoracic Surgery (CMS) · San Diego, CA

Shared published services
2 shared services · view billing descriptions
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
33%Service-mix similarityView profile →

Mohammad Hosein Islami Manuchehry, MD

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

Shared published services
2 shared services · view billing descriptions
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
32%Service-mix similarityView profile →

Ara S. Klijian, M.D.

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

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
22%Service-mix similarityView profile →

Seemal Mumtaz, M.D.

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

Shared published services
1 shared services · view billing descriptions
  • Coronary artery bypass using artery graft, 1 graft (33533)
14%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.