Quick answers
- Which hospitals does William T. Cao work at?
- Medicare's official clinician data lists William T. Cao at 1 hospital: Dominican Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William T. Cao see patients?
- Medicare's clinician data lists 1 practice location in Santa Cruz, CA. Call before your visit to confirm the address.
- What is William T. Cao's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Family Practice.
- Does William T. Cao accept Medicare assignment?
- Yes. Medicare's clinician data says William T. Cao accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for William T. Cao?
- (831) 460-6041, as listed in official Medicare / NPI Registry data.
- What is William T. Cao's NPI number?
- 1932189529. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William T. Cao works
Medicare's Facility Affiliation Data lists William T. Cao at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Dominican HospitalSanta Cruz, CA · Acute Care Hospital · CCN 050242
Practice locations
Addresses where William T. Cao is enrolled with Medicare (CMS data updated 2026-10-02).
- 1661 Soquel Dr, Suite DSanta Cruz, CA 95065 (831) 460‑6041
Group practices
Medicare enrollment lists William T. Cao as a member of this group (CMS data updated 2026-10-02).
- Sutter Bay Medical Foundation3,829 clinicians in the group
Specialties
- Hospitalistprimary
- Family Practicealso
Other hospitalists in Santa Cruz
Clinicians with the same Medicare primary specialty in Santa Cruz, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1932189529 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians