THUY NGUYEN M.D.
NPI 1891015871
Family Medicine in Santa Ana, CA
About Thuy Nguyen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THUY NGUYEN M.D. (NPI 1891015871) is an individual family medicine provider in Santa Ana, California, licensed in California (A110589) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Thuy Nguyen M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Thuy Nguyen reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Costa Mesa, CA 92626
- Reassigned Medicare billing, California enrollment
- 103 clinicians in this Medicare group
Costa Mesa, CA 92626
- Reassigned Medicare billing, California enrollment
- 194 clinicians in this Medicare group
Costa Mesa, CA 92626
- Reassigned Medicare billing, California enrollment
- 36 clinicians in this Medicare group
Westminster, CA 92683
- Reassigned Medicare billing, California enrollment
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 18
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92704 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 9
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Thuy Nguyen's NPI number?
The NPI number for Thuy Nguyen is 1891015871. It was assigned to this individual provider in the NPPES registry on June 1, 2010.
Where is Thuy Nguyen located?
Thuy Nguyen practices at 3401 W Sunflower Ave. Suite 250, Santa Ana, CA 92704. The listed phone number is (714) 619-8777.
What is Thuy Nguyen's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Thuy Nguyen enrolled in Medicare?
Yes. Thuy Nguyen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Thuy Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thuy Nguyen reassigns Medicare benefits to 4 organizations: Gn Medical Associates, Inc. (Costa Mesa, CA), Careconnectmd Ca PC (Costa Mesa, CA), Care Partners California Medical PC (Costa Mesa, CA) and 360 Family Clinic, Inc. (Westminster, CA). Each 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 Thuy Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Thuy Nguyen was last updated on November 4, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.