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TRI MINH NGUYEN MD INC
NPI 1841484391
Ophthalmology in Fountain Valley, CA

Active since August 28, 2007
11100 WARNER AVE STE 104, FOUNTAIN VALLEY, CA 92708(714) 435-1500(714) 435-1501 Get Directions Write a Review

NPPES record last updated: August 28, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Tri Minh Nguyen Md Inc NPPES

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

TRI MINH NGUYEN MD INC (NPI 1841484391) is a healthcare organization registered as an ophthalmology in Fountain Valley, California and active in the NPI registry since August 2007. The organization lists Tri Minh Nguyen, President, as its authorized official.

NPPES Registry Identity

NPI1841484391
Entity TypeOrganization
Primary Taxonomy207W00000X
Legal Business NameTRI MINH NGUYEN MD INC
Location Address11100 WARNER AVE STE 104Fountain Valley, CA 92708-7500
Mailing Address11100 Warner Ave Ste 104Fountain Valley, CA 92708-7500 · (714) 435-1500 · Fax (714) 435-1501
Phone(714) 435-1500
Fax(714) 435-1501
Organization SubpartNo
Authorized OfficialTri Minh NguyenPresident · (714) 435-1500
Enumeration DateAugust 28, 2007
Last NPPES UpdateAugust 28, 2008
✔ NPI 1841484391 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License✔ Licensed in CA · A78829
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
11100 WARNER AVE STE 104, Fountain Valley, CA 92708
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Other Identifiers 2

Medicare NSC5420010001CA
Medicare PINW18320CA

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)

Tri Minh Nguyen Md Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Tri Minh Nguyen MD Inc, which bills Medicare for the services they deliver. Of these, 2 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

Arpine Barsegian
Ophthalmology
NPI 1780070649
11100 WARNER AVE STE 104
Fountain Valley, CA 92708
(714) 435-1500
✔ PECOS✔ Accepts Medicare0.1 mi
Tri Nguyen, M.D.
Ophthalmology
NPI 1669436002
11100 WARNER AVE SUITE 104
Fountain Valley, CA 92708
(714) 435-1500
✔ 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.

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 Tri Minh Nguyen MD Inc's NPI number?

The NPI number for Tri Minh Nguyen MD Inc is 1841484391. It was assigned to this organization in the NPPES registry on August 28, 2007.

Where is Tri Minh Nguyen MD Inc located?

Tri Minh Nguyen MD Inc is located at 11100 Warner Ave Ste 104, Fountain Valley, CA 92708. The listed phone number is (714) 435-1500.

What is Tri Minh Nguyen MD Inc's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Tri Minh Nguyen MD Inc enrolled in Medicare?

Yes. Tri Minh Nguyen MD Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Tri Minh Nguyen MD Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Ophthalmology, reassign their Medicare billing to Tri Minh 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. Of these, 2 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Tri Minh Nguyen MD Inc was last updated on August 28, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.