Quick answers
- Where does Ann H. Bui see patients?
- Medicare's clinician data lists 3 practice locations, including Walnut Creek, CA, San Jose, CA and Oakland, CA. Call before your visit to confirm the address.
- What is Ann H. Bui's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Ann H. Bui accept Medicare assignment?
- Yes. Medicare's clinician data says Ann H. Bui 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 Ann H. Bui?
- (925) 478-5444, as listed in official Medicare / NPI Registry data.
- What is Ann H. Bui's NPI number?
- 1396901278. 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 Ann H. Bui is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 N Wiget Ln, Suite 140Walnut Creek, CA 94598 (925) 478‑5444
- 2425 Samaritan DrSan Jose, CA 95124 (408) 559‑2011
- 3779 Piedmont AveOakland, CA 94611 (510) 752‑1000
Group practices
Medicare enrollment lists Ann H. Bui as a member of these groups (CMS data updated 2026-10-02).
- Permanente Medical Group Inc10,996 clinicians in the group
- G2 Anesthesia PC107 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Walnut Creek
Clinicians with the same Medicare primary specialty in Walnut Creek, CA — not a recommendation.
Clinician information
| Graduation year | 2008 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1396901278 |
| 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