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

Mr. William Paul O'Donnell, CRNA

Individual provider Registered Nurse · NPI 1518028240

Mr. William Paul O'Donnell, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in San Francisco, California. Qualified in 2017, 9 years ago. Practices with Tidewater Anesthesia Associates, PA, a 34-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
9
Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

See every abbreviation used in this directory →

Practice location Address checks out

2425 Geary Blvd Dept OF Anesthesia
San Francisco, CA 94115-3358
Phone: (415) 833-3495
Show map & directions

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

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 2603 (CA)
Registered Nurse Taxonomy 163W00000X · Licence 351609 (CA)

Record details

NPI number1518028240
Entity typeIndividual (Type 1)
GenderMale
Credentials CRNA
Sole proprietorNo
NPI enumeratedDecember 13, 2006
Last updated in NPPESJanuary 3, 2022

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Tidewater Anesthesia Associates, Pa — 34 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 patients39
Services billed 39 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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 Tidewater Anesthesia Associates, PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 34 clinicians in the practice; 12 are shown here.

Other providers in San Francisco