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Compare the published Medicare service mix of Brian Ray Chen, 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.

Christina Ratto, MD

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
  • Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter (64448)
72%Service-mix similarityView profile →

Daniel Abraham, MD

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
  • Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter (64448)
66%Service-mix similarityView profile →

Gligor Vasil Gucev, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
  • Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter (64448)
65%Service-mix similarityView profile →

Michael Edward Tom, MD

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
  • Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter (64448)
65%Service-mix similarityView profile →

Paul Sang Lee, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter (64448)
  • Anesthesia for open or endoscopic total shoulder joint replacement (01638)
57%Service-mix similarityView profile →

Mohamed Harbey Eloustaz, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter (64448)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
53%Service-mix similarityView profile →

Rana Movahedi, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter (64448)
  • Anesthesia for open or endoscopic total shoulder joint replacement (01638)
51%Service-mix similarityView profile →

Shawna Dorman, MD

Anesthesiology · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
46%Service-mix similarityView profile →

Bryan Edwin Chan, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter (64448)
43%Service-mix similarityView profile →

Douglas Cuong Huynh, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
41%Service-mix similarityView profile →

Christina Marie Menor, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of neck or upper back accessed through skin using imaging guidance (01937)
40%Service-mix similarityView profile →

Edwin Maun Matias, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
40%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.