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NGUYEN MEDICAL GROUP INC APC
NPI 1407951890
Internal Medicine in Sun City, CA

Active since September 13, 2006
29826 HAUN RD, SUITE 102, SUN CITY, CA 92586(951) 672-4900(951) 301-0025 Get Directions Write a Review

NPPES record last updated: January 5, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Nguyen Medical Group Inc Apc NPPES

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

NGUYEN MEDICAL GROUP INC APC (NPI 1407951890), doing business as Sun City Medical Group Inc, is a healthcare organization registered as an internal medicine in Sun City, California and active in the NPI registry since September 2006. The organization lists Stephen H Nguyen, Md/ceo, as its authorized official.

NPPES Registry Identity

NPI1407951890
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameNGUYEN MEDICAL GROUP INC APC
Location Address29826 HAUN RD, SUITE 102Sun City, CA 92586-6547
Mailing Address29826 Haun Rd, Suite 102Sun City, CA 92586-6546 · (951) 672-4900 · Fax (951) 301-0025
Phone(951) 672-4900
Fax(951) 301-0025
Organization SubpartNo
Authorized OfficialStephen H NguyenMd/ceo · (951) 672-4900
Enumeration DateSeptember 13, 2006
Last NPPES UpdateJanuary 5, 2024
NPPES CertifiedJanuary 5, 2024
✔ NPI 1407951890 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 · A72564
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.
29826 HAUN RD, Sun City, CA 92586
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Other Names 1

Former Legal Business NameSun City Medical Group Inc

Other Identifiers 1

OtherA72564CA · Medical License

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)

Nguyen Medical Group Inc Apc 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 Nguyen Medical Group Inc Apc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Stephen Nguyen, MD
Internal Medicine
NPI 1619976644
29798 HAUN RD STE 206
Sun City, CA 92586
(951) 672-4900
✔ 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 Nguyen Medical Group Inc Apc's NPI number?

The NPI number for Nguyen Medical Group Inc Apc is 1407951890. It was assigned to this organization in the NPPES registry on September 13, 2006. The provider was formerly known as Sun City Medical Group Inc.

Where is Nguyen Medical Group Inc Apc located?

Nguyen Medical Group Inc Apc is located at 29826 Haun Rd Suite 102, Sun City, CA 92586. The listed phone number is (951) 672-4900.

What is Nguyen Medical Group Inc Apc's specialty?

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

Is Nguyen Medical Group Inc Apc enrolled in Medicare?

Yes. Nguyen Medical Group Inc Apc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Nguyen Medical Group Inc Apc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Nguyen Medical Group Inc Apc. 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 Nguyen Medical Group Inc Apc was last updated on January 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.