A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Guy N Chirman, M.D. with clinicians in the same registry specialty: Anesthesiology.

SAN LUIS OBISPO, CA · Exact areaEdit location

2024 published service data · 23 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

John Stevenson, M.D.

Anesthesiology · San Luis Obispo, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for extensive surgery on spine (00670)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
50%Service-mix similarityView profile →

Bennett T Weiss, M.D.

Anesthesiology · San Luis Obispo, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for extensive surgery on spine (00670)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
50%Service-mix similarityView profile →

Saul J David, M.D.

Anesthesiology · San Luis Obispo, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Ultrasonic guidance for needle placement (76942)
49%Service-mix similarityView profile →

Christopher R Peinado, MD

Anesthesiology · San Luis Obispo, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for extensive surgery on spine (00670)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
48%Service-mix similarityView profile →

Kang Tsau, MD

Anesthesiology · San Luis Obispo, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
44%Service-mix similarityView profile →

Amanda Westman, DO

Anesthesiology · San Luis Obispo, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
44%Service-mix similarityView profile →

Matthew James Barry, DO

Anesthesiology · San Luis Obispo, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Ultrasonic guidance for needle placement (76942)
40%Service-mix similarityView profile →

Garrett T Owen, M.D.

Anesthesiology · San Luis Obispo, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
39%Service-mix similarityView profile →

Terrance A Hack, M.D.

Anesthesiology · San Luis Obispo, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
  • Ultrasonic guidance for needle placement (76942)
39%Service-mix similarityView profile →

Paul J Wolfrom, DO

Anesthesiology · San Luis Obispo, CA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
38%Service-mix similarityView profile →

Glen Arnold Aquino, MD

Anesthesiology · San Luis Obispo, CA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
37%Service-mix similarityView profile →

Jesse Mathes Rohde, D.O., MPH

Anesthesiology · San Luis Obispo, CA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
36%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.