Ann Nguyen Pham, MD
NPI 1578190542 · Obstetrics & Gynecology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann Nguyen Pham, MD is a Obstetrics & Gynecology Physician provider in Orange, CA (NPI 1578190542).
Provider details
- NPI number
- 1578190542
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A188460 (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
6 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
- 2020-03-26
- Last updated
- 2024-03-20
- Certified
- 2024-03-20
Frequently asked questions
- What is Ann Nguyen Pham's NPI number?
- Ann Nguyen Pham's National Provider Identifier (NPI) is 1578190542, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Nguyen Pham's specialty?
- Ann Nguyen Pham is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Ann Nguyen Pham located?
- Ann Nguyen Pham's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3298.
- What is Ann Nguyen Pham's phone number?
- The practice phone number listed in the NPPES registry for Ann Nguyen Pham is (714) 456-8224.
- Does Ann Nguyen Pham accept Medicare?
- Ann Nguyen Pham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ann Nguyen Pham's NPI active?
- Yes — Ann Nguyen Pham's NPI (1578190542) is active in the NPPES registry as of the last update on 2024-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.