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Compare the published Medicare service mix of Garret Heiichi Hai-Ming Chan, MD with clinicians in the same registry specialty: Anesthesiology.

LOS ANGELES, CA · Exact areaEdit location

2024 published service data · 337 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Allison Marie Moriarty, MD

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
86%Service-mix similarityView profile →

Roxanne Favis, DO

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Ultrasound of heart with probe in esophagus, with report (93312)
70%Service-mix similarityView profile →

Jayeshkumar Patel, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
67%Service-mix similarityView profile →

Alireza Cyrus Farrohi, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
67%Service-mix similarityView profile →

Joe Chien-Wei Hong, MD

Anesthesiology · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
66%Service-mix similarityView profile →

Tawfik L. Ayoub, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
66%Service-mix similarityView profile →

Jacques Neelankavil, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
65%Service-mix similarityView profile →

Peter John Roffey, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
64%Service-mix similarityView profile →

Tara Lynn Humphrey, D.O.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
62%Service-mix similarityView profile →

John Leo Anderson-Dam, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
62%Service-mix similarityView profile →

Candy Obiageli Ezimora, MD

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Ultrasound of heart with probe in esophagus, with report (93312)
60%Service-mix similarityView profile →

John Sang Jin Shin, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
60%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.