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HONG P DUONG MD INC
NPI 1629391909
Internal Medicine in Laguna Hills, CA

Active since March 01, 2010
23961 CALLE DE LA MAGDALENA, SUITE 207, LAGUNA HILLS, CA 92653(919) 716-8018(949) 203-8642 Get Directions Write a Review

NPPES record last updated: March 15, 2010. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Hong P Duong Md Inc NPPES

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

HONG P DUONG MD INC (NPI 1629391909) is a healthcare organization registered as an internal medicine in Laguna Hills, California and active in the NPI registry since March 2010. The organization lists Hong P Duong, President, as its authorized official.

NPPES Registry Identity

NPI1629391909
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameHONG P DUONG MD INC
Location Address23961 CALLE DE LA MAGDALENA, SUITE 207Laguna Hills, CA 92653-3616
Mailing Address23961 Calle De La Magdalena, Suite 207Laguna Hills, CA 92653-3616 · (919) 716-8018 · Fax (949) 203-8642
Phone(919) 716-8018
Fax(949) 203-8642
Organization SubpartNo
Authorized OfficialHong P DuongPresident · (949) 716-8018
Enumeration DateMarch 1, 2010
Last NPPES UpdateMarch 15, 2010
✔ NPI 1629391909 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A65844
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.
23961 CALLE DE LA MAGDALENA, Laguna Hills, CA 92653
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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)

Hong P Duong 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 Hong P Duong MD Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Hong Duong, MD
Internal Medicine
NPI 1275561417
15581 BROOKHURST ST
Westminster, CA 92683
(714) 467-9923
✔ PECOS17 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 Hong P Duong MD Inc's NPI number?

The NPI number for Hong P Duong MD Inc is 1629391909. It was assigned to this organization in the NPPES registry on March 1, 2010.

Where is Hong P Duong MD Inc located?

Hong P Duong MD Inc is located at 23961 Calle De La Magdalena Suite 207, Laguna Hills, CA 92653. The listed phone number is (919) 716-8018.

What is Hong P Duong MD Inc's specialty?

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

Is Hong P Duong MD Inc enrolled in Medicare?

Yes. Hong P Duong MD Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Hong P Duong MD Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Hong P Duong 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.

When was this NPI record last updated?

The NPPES record for Hong P Duong MD Inc was last updated on March 15, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.