CHAU TON-THAT,D.O.,INC.
NPI 1962525006
Psychiatry & Neurology - Psychiatry in Westminster, CA
About Chau Ton-that,d.o.,inc. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHAU TON-THAT,D.O.,INC. (NPI 1962525006) is a healthcare organization registered as a psychiatry in Westminster, California and active in the NPI registry since April 2007. The organization maintains a secondary practice location in Aliso Viejo and lists Chau Ton-that, Dr., as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Chau Ton-that,d.o.,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 Chau Ton-That,d.O.,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 Chau Ton-That,d.O.,inc.'s NPI number?
The NPI number for Chau Ton-That,d.O.,inc. is 1962525006. It was assigned to this organization in the NPPES registry on April 6, 2007.
Where is Chau Ton-That,d.O.,inc. located?
Chau Ton-That,d.O.,inc. is located at 9533 Bolsa Ave, Westminster, CA 92683. The listed phone number is (714) 531-8720.
What is Chau Ton-That,d.O.,inc.'s specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Chau Ton-That,d.O.,inc. enrolled in Medicare?
Yes. Chau Ton-That,d.O.,inc. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Chau Ton-That,d.O.,inc.?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Psychiatry) reassigns their Medicare billing to Chau Ton-That,d.O.,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 Chau Ton-That,d.O.,inc. was last updated on April 26, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Chau Ton-That,d.o.,inc. · NPI 1962525006
Psychiatry organization in Westminster, California. Organization record, active in the CMS NPPES registry since April 6, 2007.
## Identity
- **NPI:** 1962525006 (Entity type: Organization)
- **Enumerated:** April 6, 2007
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **Organization subpart:** No
- **Authorized official:** Chau Ton-That, DR.
## Practice location
- **Address:** 9533 BOLSA AVE, Westminster, CA 92683-5904
- **Phone:** (714) 531-8720 · **Fax:** (714) 531-5794
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Psychiatry) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 26, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1962525006) · Data from the CMS NPPES public registry.