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Compare the published Medicare service mix of Matthew Adam Fischer, M.D. 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.

Louis Alexander Saddic, M.D. PH.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of tube in pulmonary artery for monitoring (93503)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
100%Service-mix similarityView profile →

Tiffany Williams, M.D./PH.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of tube in pulmonary artery for monitoring (93503)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
93%Service-mix similarityView profile →

Reed Elliott Harvey, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of tube in pulmonary artery for monitoring (93503)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
88%Service-mix similarityView profile →

Ali Salehi, MD

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of tube in pulmonary artery for monitoring (93503)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
86%Service-mix similarityView profile →

Jonathan Kar On Ho, MD

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of tube in pulmonary artery for monitoring (93503)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
86%Service-mix similarityView profile →

Tawfik L. Ayoub, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of tube in pulmonary artery for monitoring (93503)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
85%Service-mix similarityView profile →

Jacques Neelankavil, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of tube in pulmonary artery for monitoring (93503)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
84%Service-mix similarityView profile →

Tara Lynn Humphrey, D.O.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of tube in pulmonary artery for monitoring (93503)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
80%Service-mix similarityView profile →

Sophia Parveen Poorsattar, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
  • Ultrasound of heart with color-depicted blood flow, rate and valve function (93325)
80%Service-mix similarityView profile →

Jure Marijic, MD

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of tube in pulmonary artery for monitoring (93503)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
76%Service-mix similarityView profile →

Ashley Paige Oliver, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of tube in pulmonary artery for monitoring (93503)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
75%Service-mix similarityView profile →

Jayeshkumar Patel, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of tube in pulmonary artery for monitoring (93503)
  • Ultrasound of heart with probe in esophagus, with report (93312)
  • Ultrasound of heart blood flow, valves and chambers (93320)
70%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.