DR. TAN QUOC NGUYEN MD
NPI 1942468525
Family Medicine in Anaheim, CA
About Dr. Tan Quoc Nguyen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TAN QUOC NGUYEN MD (NPI 1942468525) is an individual family medicine provider in Anaheim, California, licensed in California (A103725) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS, maintains a secondary practice location in Santa Ana, and is a graduate of Michigan State University College Of Human Medicine (2006).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Dr. Tan Quoc Nguyen Md 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
2Medicare enrollment records show Tan Nguyen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Anaheim, CA 92801
- Reassigned Medicare billing, California enrollment
- 255 clinicians in this Medicare group
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 114 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92801 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ANAHEIM, CA 92801
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 Tan Nguyen's NPI number?
The NPI number for Tan Nguyen is 1942468525. It was assigned to this individual provider in the NPPES registry on May 29, 2008.
Where is Tan Nguyen located?
Tan Nguyen practices at 2441 W La Palma Ave Ste 100, Anaheim, CA 92801. The listed phone number is (657) 282-6356.
What is Tan Nguyen's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Tan Nguyen enrolled in Medicare?
Yes. Tan 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 Tan Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tan Nguyen reassigns Medicare benefits to 2 organizations: University Of California Irvine (Anaheim, CA) and Regents Of The University Of (Orange, 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 Tan 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 Tan Nguyen was last updated on March 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. Tan Quoc Nguyen, MD · NPI 1942468525
Family Medicine physician in Anaheim, California. Individual provider, active in the CMS NPPES registry since May 29, 2008.
## Identity
- **NPI:** 1942468525 (Entity type: Individual)
- **Enumerated:** May 29, 2008
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A103725 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2441 W LA PALMA AVE STE 100, Anaheim, CA 92801-2658
- **Phone:** (657) 282-6356
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): University Of California Irvine (NPI 1598790529, Anaheim, CA); Regents Of The University Of (NPI 1366590762, Orange, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Michigan State University College Of Human Medicine, class of 2006
## Record status
- **NPPES last updated:** March 21, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1942468525) · Data from the CMS NPPES public registry.