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HOA NGUYEN, M.D., INC.
NPI 1740580992
Internal Medicine in Westminster, CA

Active since October 21, 2010
5835 WESTMINSTER BLVD, SUITE A, WESTMINSTER, CA 92683(714) 898-9770(714) 373-3361 Get Directions Write a Review

NPPES record last updated: May 14, 2013. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Hoa Nguyen, M.d., Inc. NPPES

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

HOA NGUYEN, M.D., INC. (NPI 1740580992) is a healthcare organization registered as an internal medicine in Westminster, California and active in the NPI registry since October 2010. The organization lists Hoa Nguyen, President, as its authorized official.

NPPES Registry Identity

NPI1740580992
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameHOA NGUYEN, M.D., INC.
Location Address5835 WESTMINSTER BLVD, SUITE AWestminster, CA 92683-9109
Mailing Address5835 Westminster Blvd, Suite AWestminster, CA 92683-9109 · (714) 898-9770 · Fax (714) 373-3361
Phone(714) 898-9770
Fax(714) 373-3361
Organization SubpartNo
Authorized OfficialHoa NguyenPresident · (714) 898-9770
Enumeration DateOctober 21, 2010
Last NPPES UpdateMay 14, 2013
✔ NPI 1740580992 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G58722
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · GastroenterologyTaxonomy 207RG0100X · License G58722 (CA)
5835 WESTMINSTER BLVD, 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 MULTIPLE 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)

Hoa Nguyen, M.d., 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 Hoa Nguyen, M.D., Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Hoa Nguyen, M.D
Internal Medicine
NPI 1619931763
5835 WESTMINSTER BLVD SUITE # A
Westminster, CA 92683
(714) 898-9770
✔ PECOS✔ Accepts MedicareSame address

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 Hoa Nguyen, M.D., Inc.'s NPI number?

The NPI number for Hoa Nguyen, M.D., Inc. is 1740580992. It was assigned to this organization in the NPPES registry on October 21, 2010.

Where is Hoa Nguyen, M.D., Inc. located?

Hoa Nguyen, M.D., Inc. is located at 5835 Westminster Blvd Suite A, Westminster, CA 92683. The listed phone number is (714) 898-9770.

What is Hoa Nguyen, M.D., Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Hoa Nguyen, M.D., Inc. enrolled in Medicare?

Yes. Hoa Nguyen, M.D., Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Hoa Nguyen, M.D., Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Hoa Nguyen, M.D., 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.

When was this NPI record last updated?

The NPPES record for Hoa Nguyen, M.D., Inc. was last updated on May 14, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.