THANG DINH NGUYEN MD A PROFESSIONAL MEDICAL CORPORATION
NPI 1659504124
Specialist in Irvine, CA

Q: What is Thang Dinh Nguyen MD A Professional Medical Corporation's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Active since August 31, 2009

22 ODYSSEY STE 265, IRVINE, CA 92618(714) 434-0404(714) 434-0808 Get Directions Write a Review

NPPES record last updated: April 8, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 8, 2026, Mar 23, 2026, Jan 23, 2026 and 1 more (4 updates tracked since 2016).

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About Thang Dinh Nguyen Md A Professional Medical Corporation NPPES

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

THANG DINH NGUYEN MD A PROFESSIONAL MEDICAL CORPORATION (NPI 1659504124) is a healthcare organization registered as a specialist in Irvine, California and active in the NPI registry since August 2009. The organization lists Thang D Nguyen, Authorized Offical, as its authorized official.

NPPES Registry Identity

NPI1659504124

Entity TypeOrganization

Primary Taxonomy174400000X

Legal Business NameTHANG DINH NGUYEN MD A PROFESSIONAL MEDICAL CORPORATION

Location Address22 ODYSSEY STE 265Irvine, CA 92618-7701

Mailing Address22 Odyssey Ste 265, Mailbox C-10Irvine, CA 92618-7701 · (714) 434-0404 · Fax (714) 434-0808

Phone(714) 434-0404

Fax(714) 434-0808

Organization SubpartNo

Authorized OfficialThang D NguyenAuthorized Offical · (714) 434-0404

Enumeration DateAugust 31, 2009

Last NPPES UpdateApril 8, 20264 updates tracked since enumeration

NPPES CertifiedApril 8, 2026

✔ NPI 1659504124 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in CA · A76049

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

22 ODYSSEY STE 265, Irvine, CA 92618

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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)

Thang Dinh Nguyen Md A Professional Medical Corporation 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 Thang Dinh Nguyen MD A Professional Medical Corporation, which bills Medicare for the services this clinician delivers.

Clinician (1)

Thang Nguyen, MD

General Surgery

NPI 1831279009

11190 WARNER AVE #301
Fountain Valley, CA 92708

(714) 434-0404

✔ PECOS✔ Accepts Medicare10 mi

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 Thang Dinh Nguyen MD A Professional Medical Corporation's NPI number?

The NPI number for Thang Dinh Nguyen MD A Professional Medical Corporation is 1659504124. It was assigned to this organization in the NPPES registry on August 31, 2009.

Where is Thang Dinh Nguyen MD A Professional Medical Corporation located?

Thang Dinh Nguyen MD A Professional Medical Corporation is located at 22 Odyssey Ste 265, Irvine, CA 92618. The listed phone number is (714) 434-0404.

What is Thang Dinh Nguyen MD A Professional Medical Corporation's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Thang Dinh Nguyen MD A Professional Medical Corporation enrolled in Medicare?

Yes. Thang Dinh Nguyen MD A Professional Medical Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Thang Dinh Nguyen MD A Professional Medical Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (General Surgery) reassigns their Medicare billing to Thang Dinh Nguyen MD A Professional Medical Corporation. 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 Thang Dinh Nguyen MD A Professional Medical Corporation was last updated on April 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.