THOA TRONG DO MD PROF. CORP.
NPI 1114236635
Clinic/Center - Primary Care in Garden Grove, CA
About Thoa Trong Do Md Prof. Corp. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THOA TRONG DO MD PROF. CORP. (NPI 1114236635) is a healthcare organization registered as a primary care in Garden Grove, California and active in the NPI registry since October 2010. The organization holds a CLIA Waiver certificate valid through August 31, 2028 and lists Thoa Trong Do, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Thoa Trong Do Md Prof. Corp. 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 Thoa Trong Do MD Prof. Corp., 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.
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 05D0580051
Thoa Do MD · Garden Grove, CAFrequently 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 Thoa Trong Do MD Prof. Corp.'s NPI number?
The NPI number for Thoa Trong Do MD Prof. Corp. is 1114236635. It was assigned to this organization in the NPPES registry on October 1, 2010.
Where is Thoa Trong Do MD Prof. Corp. located?
Thoa Trong Do MD Prof. Corp. is located at 14350 Brookhurst St, Garden Grove, CA 92843. The listed phone number is (714) 839-0294.
What is Thoa Trong Do MD Prof. Corp.'s specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.
Is Thoa Trong Do MD Prof. Corp. enrolled in Medicare?
Yes. Thoa Trong Do MD Prof. Corp. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Thoa Trong Do MD Prof. Corp.?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Family Practice) reassigns their Medicare billing to Thoa Trong Do MD Prof. Corp.. 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 Thoa Trong Do MD Prof. Corp. hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 05D0580051) is associated with this NPI, valid through August 31, 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 Thoa Trong Do MD Prof. Corp. was last updated on October 1, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Thoa Trong Do Md Prof. Corp. · NPI 1114236635
Primary Care organization in Garden Grove, California. Organization record, active in the CMS NPPES registry since October 1, 2010.
## Identity
- **NPI:** 1114236635 (Entity type: Organization)
- **Enumerated:** October 1, 2010
- **Primary specialty:** Clinic/Center - Primary Care · taxonomy 261QP2300X
- **Organization subpart:** No
- **Authorized official:** Thoa Do, PRESIDENT
## Practice location
- **Address:** 14350 BROOKHURST ST, Garden Grove, CA 92843-4608
- **Phone:** (714) 839-0294 · **Fax:** (714) 839-1082
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Family Practice) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 1, 2010
- **Other identifiers:** Medicare PIN A43520 (CA); Medicaid 00A435200 (CA); Medicare UPIN F23259 (CA)
- **CLIA laboratory certificates:** 1 on file
---
Source: [NPI Profile](https://npiprofile.com/npi/1114236635) · Data from the CMS NPPES public registry.