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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MS. GWENERVERE LOUISE FLAGG M.D.
NPI 1548216674
General Practice in Los Angeles, CA

Active since May 26, 2006PECOS Enrolled
231 W VERNON AVE, SUITE 204, LOS ANGELES, CA 90037(323) 234-9595(323) 234-9588 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Ms. Gwenervere Louise Flagg M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. GWENERVERE LOUISE FLAGG M.D. (NPI 1548216674) is an individual general practice provider in Los Angeles, California, licensed in California (G42472) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1548216674
Entity TypeIndividualFemale
Primary Taxonomy208D00000X
Provider Legal NameMS. GWENERVERE LOUISE FLAGGCredential: M.D.
Location Address231 W VERNON AVE, SUITE 204Los Angeles, CA 90037-2700
Mailing AddressPo Box 91177Los Angeles, CA 90009-1177 · (323) 234-9595 · Fax (323) 234-9588
Phone(323) 234-9595
Fax(323) 234-9588
Sole ProprietorNo
Enumeration DateMay 26, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1548216674 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians
Taxonomy Code208D00000X
License✔ Licensed in CA · G42472
Definition

A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee

Also ListedTransplant SurgeryTaxonomy 204F00000X · License G42472 (CA)
Also ListedSurgeryTaxonomy 208600000X · License G42472 (CA)
231 W VERNON AVE, Los Angeles, CA 90037
Open in Google Maps ↗

Other Names 1

Other Name (5)Ms. Gwen Flagg M.d.

Other Identifiers 1

Medicaid00G424720CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Gwenervere Louise Flagg M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. SHENOUDA FATHY GEWAID DDS
Dentist (General Practice)
231 W VERNON AVE, SUITE 107
LOS ANGELES, CA 90037
Los Angeles County (323) 233-5906
DR. CADRIN EMMANUEL GILL MD
Family Medicine
231 W VERNON AVE, 101
LOS ANGELES, CA 90037
Los Angeles County (323) 231-5181
DR. CHARLES I OKONKWO M.D.
Internal Medicine (Cardiovascular Disease)
231 W VERNON AVE, SUITE 105
LOS ANGELES, CA 90037
Los Angeles County (323) 234-7200
JOHN B SIMONDS M.D., INC.
General Practice
231 W VERNON AVE, 204
LOS ANGELES, CA 90037
Los Angeles County (323) 521-1544
MICHAEL G GOLDSTEIN MD INC
General Practice
231 W VERNON AVE, 204
LOS ANGELES, CA 90037
Los Angeles County (323) 521-1544
CHARLES I OKONKWO MD INC
Internal Medicine (Cardiovascular Disease)
231 W VERNON AVE, SUITE 105
LOS ANGELES, CA 90037
Los Angeles County (323) 234-7200
ALVARO CERDA R.T. R CT ARRT
Radiologic Technologist
231 W VERNON AVE, SUITE 111
LOS ANGELES, CA 90037
Los Angeles County (323) 231-5044
JOANNIE MAE CATHEY COOK MD
Internal Medicine
231 W VERNON AVE, STE 204
LOS ANGELES, CA 90037
Los Angeles County (310) 724-7448

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gwenervere Flagg's NPI number?

The NPI number for Gwenervere Flagg is 1548216674. It was assigned to this individual provider in the NPPES registry on May 26, 2006. The provider is also known as Ms. Gwen Flagg M.D..

Where is Gwenervere Flagg located?

Gwenervere Flagg practices at 231 W Vernon Ave Suite 204, Los Angeles, CA 90037. The listed phone number is (323) 234-9595.

What is Gwenervere Flagg's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Is Gwenervere Flagg enrolled in Medicare?

Yes. Gwenervere Flagg is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Gwenervere Flagg was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.