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Compare the published Medicare service mix of Christina Ratto, 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.

Brian Ray Chen, 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)
  • Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of neck or upper back accessed through skin using imaging guidance (01937)
72%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)
  • Anesthesia for total hip replacement (01214)
68%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)
  • Anesthesia for total hip replacement (01214)
66%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)
  • Anesthesia for nerve destruction procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01940)
  • Anesthesia for other procedure or exam of knee joint using an endoscope (01400)
65%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)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Anesthesia for total hip replacement (01214)
61%Service-mix similarityView profile →

Peter Yooshin Jin, MD

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Anesthesia for total hip replacement (01214)
57%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)
  • Anesthesia for nerve destruction procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01940)
55%Service-mix similarityView profile →

Pamela Chia

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Anesthesia for total hip replacement (01214)
50%Service-mix similarityView profile →

Kenneth Elliott Higgins, MD

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Anesthesia for total hip replacement (01214)
47%Service-mix similarityView profile →

Bryan Edwin Chan, 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 other procedure or exam of knee joint using an endoscope (01400)
  • Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter (64448)
41%Service-mix similarityView profile →

Jessie Lo

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Anesthesia for total hip replacement (01214)
41%Service-mix similarityView profile →

Kevin Brant Guthmiller, M.D.

Anesthesiology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Daily hospital management of continuous spinal drug administration (01996)
  • 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.