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THANH-MAI TRINH MD, INC
NPI 1205861549
Obstetrics & Gynecology in Garden Grove, CA

Active since July 12, 2006CLIA 05D0977167 · Waiver
10212 WESTMINSTER AVE, STE 114, GARDEN GROVE, CA 92843(714) 638-1864(714) 638-1964 Get Directions Write a Review

NPPES record last updated: December 4, 2008. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Thanh-mai Trinh Md, Inc NPPES

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

THANH-MAI TRINH MD, INC (NPI 1205861549) is a healthcare organization registered as an obstetrics & gynecology in Garden Grove, California and active in the NPI registry since July 2006. The organization holds a CLIA Waiver certificate valid through March 6, 2028 and lists Thanh-mai Trinh, Owner, as its authorized official.

NPPES Registry Identity

NPI1205861549
Entity TypeOrganization
Primary Taxonomy207V00000X
Legal Business NameTHANH-MAI TRINH MD, INC
Location Address10212 WESTMINSTER AVE, STE 114Garden Grove, CA 92843-4800
Mailing Address10212 Westminster Ave, Ste 114Garden Grove, CA 92843-4800 · (714) 638-1864 · Fax (714) 638-1964
Phone(714) 638-1864
Fax(714) 638-1964
Organization SubpartNo
Authorized OfficialThanh-mai TrinhOwner · (714) 638-1864
Enumeration DateJuly 12, 2006
Last NPPES UpdateDecember 4, 2008
✔ NPI 1205861549 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 · A60206
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.
10212 WESTMINSTER AVE, Garden Grove, CA 92843
Open in Google Maps ↗

Other Identifiers 3

Medicaid00A602060CA
Medicare PINA60206CA
Medicare UPINH06160

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)

Thanh-mai Trinh 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 Thanh-Mai Trinh MD, Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Thanh-Mai Trinh, MD
Obstetrics/Gynecology
NPI 1578589560
10212 WESTMINSTER AVE 114
Garden Grove, CA 92843
(714) 638-1864
✔ 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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D0977167

Thanh-Mai Trinh MD · Garden Grove, CA
Active · expires Mar 6, 2028
CLIA Number05D0977167
Laboratory TypePhysician Office
Certificate Effective DateMarch 7, 2026
Certificate Expiration DateMarch 6, 2028
Laboratory DirectorThan Mai N. Trinh MD
Laboratory Phone(714) 638-1864
Laboratory LocationThanh-Mai Trinh MD10212 Westminster Avenue, Suite 114, Garden Grove, CA 92844
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Thanh-Mai Trinh MD, Inc's NPI number?

The NPI number for Thanh-Mai Trinh MD, Inc is 1205861549. It was assigned to this organization in the NPPES registry on July 12, 2006.

Where is Thanh-Mai Trinh MD, Inc located?

Thanh-Mai Trinh MD, Inc is located at 10212 Westminster Ave Ste 114, Garden Grove, CA 92843. The listed phone number is (714) 638-1864.

What is Thanh-Mai Trinh MD, Inc's specialty?

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

Is Thanh-Mai Trinh MD, Inc enrolled in Medicare?

Yes. Thanh-Mai Trinh MD, Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Thanh-Mai Trinh MD, Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Obstetrics/Gynecology) reassigns their Medicare billing to Thanh-Mai Trinh 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.

Does Thanh-Mai Trinh MD, Inc hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0977167) is associated with this NPI, valid through March 6, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Thanh-Mai Trinh MD, Inc was last updated on December 4, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years 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.