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OC HEALTH MEDICAL CORPORATION
NPI 1164278404
Internal Medicine in Orange, CA

Active since April 26, 2024
438 E KATELLA AVE STE F, ORANGE, CA 92867(714) 744-5000 Get Directions Write a Review

NPPES record last updated: April 28, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 20, 2024, Sep 3, 2024, May 6, 2024 and 1 more (4 updates tracked since 2024).

About Oc Health Medical Corporation NPPES

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

OC HEALTH MEDICAL CORPORATION (NPI 1164278404) is a healthcare organization registered as an internal medicine in Orange, California and active in the NPI registry since April 2024. The organization lists Hung M Nguyen, D.o./president, as its authorized official.

NPPES Registry Identity

NPI1164278404
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameOC HEALTH MEDICAL CORPORATION
Location Address438 E KATELLA AVE STE FOrange, CA 92867-4857
Mailing Address12762 Annette CirGarden Grove, CA 92840-6103 · (714) 296-6264
Phone(714) 744-5000
Organization SubpartNo
Authorized OfficialHung M NguyenD.o./president · (714) 376-9875
Enumeration DateApril 26, 2024
Last NPPES UpdateApril 28, 20254 updates tracked since enumeration
NPPES CertifiedApril 28, 2025
✔ NPI 1164278404 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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.
438 E KATELLA AVE STE F, Orange, CA 92867
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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)

Oc Health Medical Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

4

Medicare enrollment records show 4 clinicians reassign Medicare billing to Oc Health Medical Corporation, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (4)

Hung Manh Nguyen, D.O.
Family Practice
NPI 1447284526
438 E KATELLA AVE STE F
Orange, CA 92867
(714) 296-6264
✔ PECOS✔ Accepts MedicareSame address
Roya Masoud, D.O.
Family Practice
NPI 1295926087
16415 COLORADO AVE 410
Paramount, CA 90723
(562) 529-2259
✔ PECOS18 mi
Daniel Woo, M.D.
Family Practice
NPI 1669670832
4511 ROSEMEAD BLVD
Pico Rivera, CA 90660
(562) 692-3388
✔ PECOS19 mi
Abdul Masoud, M.D.
General Surgery
NPI 1578633913
555 W COMPTON BLVD STE 104
Compton, CA 90220
(310) 639-7200
✔ PECOS23 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 Oc Health Medical Corporation's NPI number?

The NPI number for Oc Health Medical Corporation is 1164278404. It was assigned to this organization in the NPPES registry on April 26, 2024.

Where is Oc Health Medical Corporation located?

Oc Health Medical Corporation is located at 438 E Katella Ave Ste F, Orange, CA 92867. The listed phone number is (714) 744-5000.

What is Oc Health Medical Corporation's specialty?

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

Is Oc Health Medical Corporation enrolled in Medicare?

Yes. Oc Health Medical Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Oc Health Medical Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians in 2 Medicare specialties reassign their Medicare billing to Oc Health 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. The largest specialties are Family Practice (3) and General Surgery (1). Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Oc Health Medical Corporation was last updated on April 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.