WYNN MEDICAL CENTER INTERNAL MEDICINE-MULTISPECIALTY
NPI 1619818630
Internal Medicine in Garden Grove, CA

Active since April 03, 2026
10402 WESTMINSTER AVE STE 100D, GARDEN GROVE, CA 92843(714) 462-2225 Get Directions Write a Review

NPPES record last updated: April 3, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Wynn Medical Center Internal Medicine-multispecialty NPPES

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

WYNN MEDICAL CENTER INTERNAL MEDICINE-MULTISPECIALTY (NPI 1619818630) is a healthcare organization registered as an internal medicine in Garden Grove, California and active in the NPI registry since April 2026. The organization lists Huynh Wynn Tran, President/ceo, as its authorized official.

NPPES Registry Identity

NPI1619818630
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameWYNN MEDICAL CENTER INTERNAL MEDICINE-MULTISPECIALTY
Location Address10402 WESTMINSTER AVE STE 100DGarden Grove, CA 92843-4861
Mailing Address10402 Westminster Ave Ste 100dGarden Grove, CA 92843-4861 · (714) 462-2225
Organization SubpartNo
Authorized OfficialHuynh Wynn TranPresident/ceo · (714) 462-2225
Enumeration DateApril 3, 2026
NPPES CertifiedApril 3, 2026
✔ NPI 1619818630 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ 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.
Also ListedDermatologyTaxonomy 207N00000X
Also ListedInternal Medicine · NephrologyTaxonomy 207RN0300X
Also ListedInternal Medicine · RheumatologyTaxonomy 207RR0500X
Also ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X
10402 WESTMINSTER AVE STE 100D, Garden Grove, CA 92843

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)

Wynn Medical Center Internal Medicine-multispecialty is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

5

Medicare enrollment records show 5 clinicians reassign Medicare billing to Wynn Medical Center Internal Medicine-Multispecialty, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (5)

Nurse Practitioner
NPI 1144049800
9778 KATELLA AVE STE 106
Anaheim, CA 92804
(714) 867-6594
✔ PECOS3.1 mi
General Practice
NPI 1407907744
10107 VALLEY BLVD
El Monte, CA 91731
(626) 443-9050
✔ PECOS✔ Accepts Medicare23 mi
Nurse Practitioner
NPI 1447113154
9126 VALLEY BLVD STE B
Rosemead, CA 91770
(626) 238-2898
✔ PECOS23 mi
Internal Medicine
NPI 1649566571
9126 VALLEY BLVD STE B
Rosemead, CA 91770
(626) 573-9003
✔ PECOS✔ Accepts Medicare23 mi
Nurse Practitioner
NPI 1316627714
3030 W OLYMPIC BLVD STE 206
Los Angeles, CA 90006
(213) 322-2666
✔ PECOS29 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 Wynn Medical Center Internal Medicine-Multispecialty's NPI number?

The NPI number for Wynn Medical Center Internal Medicine-Multispecialty is 1619818630. It was assigned to this organization in the NPPES registry on April 3, 2026.

Where is Wynn Medical Center Internal Medicine-Multispecialty located?

Wynn Medical Center Internal Medicine-Multispecialty is located at 10402 Westminster Ave Ste 100D, Garden Grove, CA 92843. The listed phone number is (714) 462-2225.

What is Wynn Medical Center Internal Medicine-Multispecialty's specialty?

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

Is Wynn Medical Center Internal Medicine-Multispecialty enrolled in Medicare?

Yes. Wynn Medical Center Internal Medicine-Multispecialty is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Wynn Medical Center Internal Medicine-Multispecialty?

According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians in 3 Medicare specialties reassign their Medicare billing to Wynn Medical Center Internal Medicine-Multispecialty. 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 Nurse Practitioner (3), General Practice (1) and Internal Medicine (1). Of these, 1 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 Wynn Medical Center Internal Medicine-Multispecialty was last updated on April 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.