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TUNG HUU NGUYEN MD INC
NPI 1164849857
Internal Medicine - Cardiovascular Disease in Westminster, CA

Active since March 20, 2014CLIA 05D2077901 · Waiver
9822 BOLSA AVE STE F, WESTMINSTER, CA 92683(714) 775-7000(714) 775-5200 Get Directions Write a Review

NPPES record last updated: March 25, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Tung Huu Nguyen Md Inc NPPES

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

TUNG HUU NGUYEN MD INC (NPI 1164849857) is a healthcare organization registered as a cardiovascular disease in Westminster, California and active in the NPI registry since March 2014. The organization holds a CLIA Waiver certificate valid through May 15, 2028 and lists Tung Huu Nguyen, President, as its authorized official.

NPPES Registry Identity

NPI1164849857
Entity TypeOrganization
Primary Taxonomy207RC0000X
Legal Business NameTUNG HUU NGUYEN MD INC
Location Address9822 BOLSA AVE STE FWestminster, CA 92683-6870
Mailing Address9822 Bolsa Ave Ste FWestminster, CA 92683-6870 · (714) 775-7000 · Fax (714) 775-5200
Phone(714) 775-7000
Fax(714) 775-5200
Organization SubpartNo
Authorized OfficialTung Huu NguyenPresident · (714) 775-7000
Enumeration DateMarch 20, 2014
Last NPPES UpdateMarch 25, 2020
NPPES CertifiedMarch 25, 2020
✔ NPI 1164849857 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in CA · A105800
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
9822 BOLSA AVE STE F, Westminster, CA 92683
Open in Google Maps ↗

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)

Tung Huu Nguyen 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 Tung Huu Nguyen MD Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Tung Nguyen, M.D.
Cardiovascular Disease (Cardiology)
NPI 1700038577
9822 BOLSA AVE STE F
Westminster, CA 92683
(714) 775-7000
✔ PECOS✔ Accepts Medicare0.1 mi

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 05D2077901

Tung Huu Nguyen MD Inc · Westminster, CA
Active · expires May 15, 2028
CLIA Number05D2077901
Laboratory TypePhysician Office
Certificate Effective DateMay 16, 2026
Certificate Expiration DateMay 15, 2028
Laboratory DirectorTung Huu Nguyen
Laboratory Phone(714) 707-4833
Laboratory LocationTung Huu Nguyen MD Inc9822 Bolsa Ave Ste F, Westminster, CA 92683
CLIA data matches this NPI record on: Address Name
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 Tung Huu Nguyen MD Inc's NPI number?

The NPI number for Tung Huu Nguyen MD Inc is 1164849857. It was assigned to this organization in the NPPES registry on March 20, 2014.

Where is Tung Huu Nguyen MD Inc located?

Tung Huu Nguyen MD Inc is located at 9822 Bolsa Ave Ste F, Westminster, CA 92683. The listed phone number is (714) 775-7000.

What is Tung Huu Nguyen MD Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Tung Huu Nguyen MD Inc enrolled in Medicare?

Yes. Tung Huu Nguyen MD Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Tung Huu Nguyen MD Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Cardiovascular Disease (Cardiology)) reassigns their Medicare billing to Tung Huu Nguyen 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 Tung Huu Nguyen MD Inc hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D2077901) is associated with this NPI, valid through May 15, 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 Tung Huu Nguyen MD Inc was last updated on March 25, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.