TUAN XUAN NGUYEN, MD, A PROF CORP.
NPI 1760623847
Internal Medicine in Garden Grove, CA
About Tuan Xuan Nguyen, Md, A Prof Corp. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TUAN XUAN NGUYEN, MD, A PROF CORP. (NPI 1760623847) is a healthcare organization registered as an internal medicine in Garden Grove, California and active in the NPI registry since March 2009. The organization holds a CLIA Waiver certificate valid through May 8, 2028 and lists Tuan Xuan Nguyen, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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)
Tuan Xuan Nguyen, Md, A 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 Tuan Xuan Nguyen, MD, A 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 05D2148368
Tuan Xuan Nguyen MD A Prof Corp · 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 Tuan Xuan Nguyen, MD, A Prof Corp.'s NPI number?
The NPI number for Tuan Xuan Nguyen, MD, A Prof Corp. is 1760623847. It was assigned to this organization in the NPPES registry on March 18, 2009.
Where is Tuan Xuan Nguyen, MD, A Prof Corp. located?
Tuan Xuan Nguyen, MD, A Prof Corp. is located at 14221 N. Euclid St Suite H, Garden Grove, CA 92843. The listed phone number is (714) 530-2420.
What is Tuan Xuan Nguyen, MD, A Prof Corp.'s specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Tuan Xuan Nguyen, MD, A Prof Corp. enrolled in Medicare?
Yes. Tuan Xuan Nguyen, MD, A Prof Corp. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Tuan Xuan Nguyen, MD, A Prof Corp.?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Tuan Xuan Nguyen, MD, A 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 Tuan Xuan Nguyen, MD, A Prof Corp. hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 05D2148368) is associated with this NPI, valid through May 8, 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 Tuan Xuan Nguyen, MD, A Prof Corp. was last updated on December 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Tuan Xuan Nguyen, Md, A Prof Corp. · NPI 1760623847
Internal Medicine organization in Garden Grove, California. Organization record, active in the CMS NPPES registry since March 18, 2009.
## Identity
- **NPI:** 1760623847 (Entity type: Organization)
- **Enumerated:** March 18, 2009
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Tuan Xuan Nguyen, PRESIDENT
## Practice location
- **Address:** 14221 N. EUCLID ST, SUITE H, Garden Grove, CA 92843-4991
- **Phone:** (714) 530-2420 · **Fax:** (714) 530-2478
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Internal Medicine) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 17, 2018
- **Other identifiers:** Medicaid 00A486360 (CA); Other ZZZ08624Z (CA)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1760623847) · Data from the CMS NPPES public registry.