A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Joyce Chang, M.D. with clinicians in the same registry specialty: Anesthesiology.

SAN FRANCISCO, CA · Exact areaEdit location

2024 published service data · 172 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Amreen Savanna Rahman, MD

Anesthesiology · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
90%Service-mix similarityView profile →

Anne Lorine Donovan, M.D.

Anesthesiology · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
89%Service-mix similarityView profile →

Jim Sheng, MD

Anesthesiology · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
88%Service-mix similarityView profile →

Wendy Patricia Smith, M.D.

Anesthesiology · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
81%Service-mix similarityView profile →

Lindsey Huddleston, M.D.

Anesthesiology · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
80%Service-mix similarityView profile →

Jon Matthew Aldrich, M.D.

Anesthesiology · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
80%Service-mix similarityView profile →

Dylan Masters, MD

Anesthesiology · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
79%Service-mix similarityView profile →

Kristine West Breyer, M.D.

Anesthesiology · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
63%Service-mix similarityView profile →

Damon Yu, D.O.

Anesthesiology · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
61%Service-mix similarityView profile →

Andrew Erwin Schober, M.D.

Anesthesiology · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
59%Service-mix similarityView profile →

Jared Brown, M.D.

Anesthesiology · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
59%Service-mix similarityView profile →

Kaveh Hemati

Anesthesiology · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
59%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.