THOMAS TRI QUACH, MD, INC
NPI 1750652137
Obstetrics & Gynecology in Westminster, CA
About Thomas Tri Quach, Md, Inc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THOMAS TRI QUACH, MD, INC (NPI 1750652137) is a healthcare organization registered as an obstetrics & gynecology in Westminster, California and active in the NPI registry since January 2012. The organization lists Thomas Quach, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Thomas Tri Quach, Md, Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by January 31, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Thomas Tri Quach, MD, Inc, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 Thomas Tri Quach, MD, Inc's NPI number?
The NPI number for Thomas Tri Quach, MD, Inc is 1750652137. It was assigned to this organization in the NPPES registry on January 18, 2012.
Where is Thomas Tri Quach, MD, Inc located?
Thomas Tri Quach, MD, Inc is located at 9186 Bolsa Avenue, Westminster, CA 92648. The listed phone number is (714) 799-7522.
What is Thomas Tri Quach, MD, Inc's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Thomas Tri Quach, MD, Inc enrolled in Medicare?
Yes. Thomas Tri Quach, MD, Inc is registered in the Medicare PECOS enrollment system.
When is Thomas Tri Quach, MD, Inc's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by January 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Thomas Tri Quach, MD, Inc?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Obstetrics/Gynecology) reassigns their Medicare billing to Thomas Tri Quach, 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 Thomas Tri Quach, MD, Inc was last updated on January 18, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Thomas Tri Quach, Md, Inc · NPI 1750652137
Obstetrics & Gynecology organization in Westminster, California. Organization record, active in the CMS NPPES registry since January 18, 2012.
## Identity
- **NPI:** 1750652137 (Entity type: Organization)
- **Enumerated:** January 18, 2012
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **Organization subpart:** No
- **Authorized official:** Thomas Quach, PRESIDENT
## Practice location
- **Address:** 9186 BOLSA AVENUE, Westminster, CA 92648
- **Phone:** (714) 799-7522 · **Fax:** (714) 799-7523
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** January 31, 2027 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 1 clinician (Obstetrics/Gynecology) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 18, 2012
- **Other identifiers:** Medicaid 00G805560 (CA); Medicare UPIN G50495 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1750652137) · Data from the CMS NPPES public registry.