Ann Bui, M.D.
NPI 1396901278 · Anesthesiology Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann Bui, M.D. is a Anesthesiology Physician provider in Oakland, CA (NPI 1396901278).
Provider details
- NPI number
- 1396901278
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A121395 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-31
- Last updated
- 2021-12-16
Frequently asked questions
- What is Ann Bui's NPI number?
- Ann Bui's National Provider Identifier (NPI) is 1396901278, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Bui's specialty?
- Ann Bui is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Ann Bui located?
- Ann Bui's practice location on file with NPPES is 275 W Macarthur Blvd, Oakland, CA 94611-5641.
- What is Ann Bui's phone number?
- The practice phone number listed in the NPPES registry for Ann Bui is (510) 752-6238.
- Does Ann Bui accept Medicare?
- Ann Bui is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ann Bui's NPI active?
- Yes — Ann Bui's NPI (1396901278) is active in the NPPES registry as of the last update on 2021-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.