Quick answers
- Where does Gary C. Kao see patients?
- Medicare's clinician data lists 2 practice locations, including Santa Ana, CA and Anaheim, CA. Call before your visit to confirm the address.
- What is Gary C. Kao's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Gary C. Kao accept Medicare assignment?
- Yes. Medicare's clinician data says Gary C. Kao 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 Gary C. Kao?
- (714) 953-3500, as listed in official Medicare / NPI Registry data.
- What is Gary C. Kao's NPI number?
- 1619166931. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Gary C. Kao is enrolled with Medicare (CMS data updated 2026-10-02).
- 1001 N Tustin AveSanta Ana, CA 92705 (714) 953‑3500
- 1111 W La Palma AveAnaheim, CA 92801 (714) 774‑1450
Group practices
Medicare enrollment lists Gary C. Kao as a member of these groups (CMS data updated 2026-10-02).
- Anesthesia Associates of Southern California PC18 clinicians in the group
- Anesthesia Specialists of Orange County Inc16 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Santa Ana
Clinicians with the same Medicare primary specialty in Santa Ana, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1619166931 |
| 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
- 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