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

William Cao, MD

Individual provider Family Medicine Physician · NPI 1932189529

William Cao, MD is a Hospitalist in Santa Cruz, California. Graduated from Medical College of Wisconsin in 1996, 30 years ago. Practices with Sutter Bay Medical Foundation, a 3,762-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
30
Trained at
Medical College of Wisconsin
Licensed in
CA
In the registry since
2006
Specialties on file
2
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

1661 Soquel Dr Ste D
Santa Cruz, CA 95065-1709
Phone: (831) 452-5670
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

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence A66603 (CA)
Family Medicine Physician Taxonomy 207Q00000X · Licence A66603 (CA)

Record details

NPI number1932189529
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 19, 2006
Last updated in NPPESFebruary 22, 2021
Certification dateFebruary 22, 2021
Mailing address325 Distel Cir, Los Altos, CA 94022-1408

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesFAMILY PRACTICE
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 1996 (30 years in practice)
Group practice Sutter Bay Medical Foundation — 3762 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Santa Cruz