Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Claas Siegmueller, MD, FRCA

Individual provider Anesthesiology Physician · NPI 1437427796

Claas Siegmueller, MD, FRCA practises Anesthesiology in San Francisco, California. Qualified in 1997, 29 years ago. Practices with University Anesthesia Medical Group, a 404-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
29
Licensed in
CA
In the registry since
2011
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

521 Parnassus Ave C450
San Francisco, CA 94143-0648 Not confirmed with CMS for 14 years — call before visiting
Phone: (415) 476-2131
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence #F5701 (CA)

Record details

NPI number1437427796
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , FRCA
Sole proprietorYes
NPI enumeratedDecember 1, 2011
Last updated in NPPESFebruary 8, 2012

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice University Anesthesia Medical Group — 404 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients138
Services billed 178 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at University Anesthesia Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 404 clinicians in the practice; 12 are shown here.

Other providers in San Francisco