Gwenervere Louise Flagg, M.D.
General Practice Physician · Los Angeles, CA
Gwenervere Louise Flagg, M.D. is a general practice physician with a practice address in Los Angeles, California, and NPI 1548216674, issued on May 26, 2006. Check the license (California G42472, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gwenervere Louise Flagg
- Credential
- M.D.
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- G42472 CA
Self-reported in NPPES; status is on the state search - Practice location
- 231 W Vernon Ave, Los Angeles, CA 90037
- Phone
- (323) 234-9595
- Enumerated
- May 26, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (323) 234-9588
- Medicaid ID
- 00G424720 CA
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 1,956 in California → Look up another NPI →
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A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gwenervere Louise Flagg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G42472Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average general practice physician in 2024
323 Medicare Part D claims for 15 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Lisinopril32 claims
- Gabapentin23 claims
- Omeprazole22 claims
- Basaglar Kwikpen U-10014 claims
- Fluticasone Propionate13 claims
- Metformin Hcl13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Gwenervere Louise Flagg among 1,956 general practice physician records in California
Gwenervere Louise Flagg, M.D. is one of 1,956 general practice physician records with a practice address in California. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 66% newer
- In a Medicare fileYes · 48% of these records are
- In the CMS Doctors and Clinicians fileNo · 27% of these records are
- Record last updated2026 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
General Practice Physician providers in California
There are 1,956 general practice physician records in California.
All 1,956 in California → Every provider in Los Angeles → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Vahe Azarian, M.D.Los Angeles, CA 900371205125804
- Charles Okoye, MDLos Angeles, CA 900371033136544
- Anna Gravich, M.D.Los Angeles, CA 900361144369083
- Nabil Khalil, MDLos Angeles, CA 900381649387879
- Amanda Cohen, DAOM, L.ACLos Angeles, CA 900391780003350
- Magdi Elbassir, M.D.,Los Angeles, CA 900391194835330
- Marcel Heiferling, M.D.Los Angeles, CA 900351477812279
- Christine Ibrahim, M.D.Los Angeles, CA 900351487895280
Common questions
What is Gwenervere Louise Flagg, M.D.'s NPI number?
Gwenervere Louise Flagg, M.D.'s National Provider Identifier (NPI) is 1548216674, issued on May 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gwenervere Louise Flagg, M.D. located?
The NPPES record lists a practice address at 231 W Vernon Ave, Los Angeles, CA, 90037. Phone: (323) 234-9595. Providers update this record themselves, so call before visiting.
How can I verify Gwenervere Louise Flagg, M.D.'s license?
NPPES lists California license number G42472, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gwenervere Louise Flagg, M.D. prescribe under Medicare Part D?
In 2024, Gwenervere Louise Flagg, M.D. had 323 Medicare Part D claims for 15 beneficiaries; the average among general practice physician prescribers was 3,030. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.