1. Home
  2. Directory
  3. California
  4. Garden Grove
  5. Obstetrics Gynecology
  6. NPI Profile

ANNMARIE NGUYEN MD, INC
NPI 1730343971
Obstetrics & Gynecology in Garden Grove, CA

Active since July 16, 2008
12665 GARDEN GROVE BLVD STE 611, GARDEN GROVE, CA 92843(714) 539-5225(714) 539-5213 Get Directions Write a Review

NPPES record last updated: April 7, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 7, 2025, Sep 23, 2024 (2 updates tracked since 2024).

About Annmarie Nguyen Md, Inc NPPES

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

ANNMARIE NGUYEN MD, INC (NPI 1730343971) is a healthcare organization registered as an obstetrics & gynecology in Garden Grove, California and active in the NPI registry since July 2008. The organization lists Annmarie Trang Nguyen, Owner, as its authorized official.

NPPES Registry Identity

NPI1730343971
Entity TypeOrganization
Primary Taxonomy207V00000X
Legal Business NameANNMARIE NGUYEN MD, INC
Location Address12665 GARDEN GROVE BLVD STE 611Garden Grove, CA 92843-1920
Mailing Address12665 Garden Grove Blvd Ste 611Garden Grove, CA 92843-1920 · (714) 539-5225 · Fax (714) 539-5213
Phone(714) 539-5225
Fax(714) 539-5213
Organization SubpartNo
Authorized OfficialAnnmarie Trang NguyenOwner · (714) 539-5225
Enumeration DateJuly 16, 2008
Last NPPES UpdateApril 7, 20252 updates tracked since enumeration
NPPES CertifiedApril 7, 2025
✔ NPI 1730343971 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · G69150
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
12665 GARDEN GROVE BLVD STE 611, Garden Grove, CA 92843
Open in Google Maps ↗

Other Identifiers 1

Medicaid00G691500CA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Annmarie Nguyen Md, Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Annmarie Nguyen MD, Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Annmarie Nguyen, MD
Obstetrics/Gynecology
NPI 1083628036
12665 GARDEN GROVE BLVD SUITE 611
Garden Grove, CA 92843
(714) 539-5225
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Annmarie Nguyen MD, Inc's NPI number?

The NPI number for Annmarie Nguyen MD, Inc is 1730343971. It was assigned to this organization in the NPPES registry on July 16, 2008.

Where is Annmarie Nguyen MD, Inc located?

Annmarie Nguyen MD, Inc is located at 12665 Garden Grove Blvd Ste 611, Garden Grove, CA 92843. The listed phone number is (714) 539-5225.

What is Annmarie Nguyen MD, Inc's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Annmarie Nguyen MD, Inc enrolled in Medicare?

Yes. Annmarie Nguyen MD, Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Annmarie Nguyen MD, Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Obstetrics/Gynecology) reassigns their Medicare billing to Annmarie Nguyen MD, Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Annmarie Nguyen MD, Inc was last updated on April 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.