Gwenervere Flagg, M.D.
NPI 1548216674 · General Practice Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gwenervere Flagg, M.D. is a General Practice Physician provider in Los Angeles, CA (NPI 1548216674).
Provider details
- NPI number
- 1548216674
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- License
- G42472 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Lisinopril | 32 |
| Gabapentin | 23 |
| Omeprazole | 22 |
| Insulin Glargine,hum.rec.anlogbrand: Basaglar Kwikpen U-100 | 14 |
| Fluticasone Propionate | 13 |
| Metformin Hcl | 13 |
| Fenofibrate | 12 |
| Losartan Potassium | 12 |
| Metoprolol Tartrate | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-26
- Last updated
- 2025-09-11
Frequently asked questions
- What is Gwenervere Flagg's NPI number?
- Gwenervere Flagg's National Provider Identifier (NPI) is 1548216674, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gwenervere Flagg's specialty?
- Gwenervere Flagg is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Gwenervere Flagg located?
- Gwenervere Flagg's practice location on file with NPPES is 231 W Vernon Ave, Los Angeles, CA 90037-2700.
- What is Gwenervere Flagg's phone number?
- The practice phone number listed in the NPPES registry for Gwenervere Flagg is (323) 234-9595.
- Does Gwenervere Flagg accept Medicare?
- Gwenervere Flagg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gwenervere Flagg's NPI active?
- Yes — Gwenervere Flagg's NPI (1548216674) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.