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Compare the published Medicare service mix of Ali Gheissari, M.D. with clinicians in the same registry specialty: Thoracic Surgery (CMS).

LOS ANGELES, CA · Exact areaEdit location

2024 published service data · 46 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Yousef M. Odeh, M.D.

Cardiac Surgery · Thoracic Surgery (CMS) · Los Angeles, CA

Shared published services
3 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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Replacement of aortic valve through the skin and femoral artery (33361)
65%Service-mix similarityView profile →

Wen Cheng, M.D.

Thoracic Surgery (CMS) · Los Angeles, CA

Shared published services
3 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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Replacement of aortic valve through the skin and femoral artery (33361)
64%Service-mix similarityView profile →

Robbin G Cohen, MD

Cardiac Surgery · Thoracic Surgery (CMS) · Los Angeles, CA

Shared published services
3 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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Replacement of aortic valve through the skin and femoral artery (33361)
61%Service-mix similarityView profile →

Robert John Gottner, M.D.

Thoracic Surgery (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Replacement of aortic valve through the skin and femoral artery (33361)
50%Service-mix similarityView profile →

Heidi Reich, M.D.

Thoracic Surgery (CMS) · Los Angeles, CA

Shared published services
3 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)
  • Replacement of aortic valve through the skin and femoral artery (33361)
  • Coronary artery bypass using artery graft, 1 graft (33533)
48%Service-mix similarityView profile →

Victoria Lam

Thoracic Surgery (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Coronary artery bypass using artery graft, 1 graft (33533)
48%Service-mix similarityView profile →

Amirhossein Mahfoozi, M.D.

Thoracic Surgery (CMS) · Los Angeles, 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)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
45%Service-mix similarityView profile →

Darren Michael Hodgins, MD

General Surgery · Thoracic Surgery (CMS) · Los Angeles, CA

Shared published services
3 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)
  • Replacement of aortic valve through the skin and femoral artery (33361)
  • Coronary artery bypass using artery graft, 1 graft (33533)
41%Service-mix similarityView profile →

Nguyen Minh Le, MD

Thoracic Surgery (CMS) · Los Angeles, CA

Shared published services
3 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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
41%Service-mix similarityView profile →

Serge S Kobsa, M.D., PH.D.

Cardiac Surgery (CMS) · Los Angeles, 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)
  • Replacement of aortic valve through the skin and femoral artery (33361)
39%Service-mix similarityView profile →

David G Rabkin, MD

Cardiac Surgery · Thoracic Surgery (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
  • Coronary artery bypass using artery graft, 1 graft (33533)
38%Service-mix similarityView profile →

Jonathan Christian Cash, M.D.

Cardiac Surgery · Thoracic Surgery (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Replacement of aortic valve through the skin and femoral artery (33361)
  • Coronary artery bypass using artery graft, 1 graft (33533)
38%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.