HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of San Shing Yuan, MD with clinicians in the same registry specialty: Anesthesiology.

WALNUT CREEK, CA · Exact areaEdit location

2024 published service data · 46 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Melissa Louise Ennen, M.D.

Anesthesiology · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
  • Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand (01810)
  • Anesthesia for other procedure on top of arm bone and shoulder joint (01630)
73%Service-mix similarityView profile →

Kurt Dieter Dittmar, MD

Anesthesiology · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
  • Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand (01810)
  • Anesthesia for total hip replacement (01214)
73%Service-mix similarityView profile →

Joshua Daniel Meezan, MD

Anesthesiology · Walnut Creek, 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)
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
61%Service-mix similarityView profile →

Johannes Gerhard Peters, MD

Anesthesiology · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
  • Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand (01810)
  • Anesthesia for other procedure on top of arm bone and shoulder joint (01630)
59%Service-mix similarityView profile →

John Yeuk Hon Siu, M.D.

Anesthesiology · Walnut Creek, 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)
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
  • Anesthesia for total hip replacement (01214)
58%Service-mix similarityView profile →

Jorge Aguilar, M.D.

Anesthesiology · Walnut Creek, 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)
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
55%Service-mix similarityView profile →

Ryan Bradley Green, M.D., PH.D.

Anesthesiology · Walnut Creek, 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)
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
55%Service-mix similarityView profile →

Michael E. Ennis, MD

Anesthesiology · Walnut Creek, CA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for total hip replacement (01214)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
54%Service-mix similarityView profile →

Jospeh Cuenco, MD

Anesthesiology · Walnut Creek, 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)
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
53%Service-mix similarityView profile →

Julie Yeh, MD

Anesthesiology · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
  • Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand (01810)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
50%Service-mix similarityView profile →

Tenzing Tashi Sherpa Lama, MD, MSCRES

Anesthesiology · Walnut Creek, 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)
48%Service-mix similarityView profile →

Radhika Sharma Annadata, MD

Anesthesiology · Walnut Creek, 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 total hip replacement (01214)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
39%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.