DR. TAN BA NGUYEN M.D.
NPI 1053668608
Radiology - Diagnostic Radiology in Anaheim, CA
About Dr. Tan Ba Nguyen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TAN BA NGUYEN M.D. (NPI 1053668608) is an individual diagnostic radiology provider in Anaheim, California, licensed in California (A130215) and active in the NPI registry since August 2012. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (2012).
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
Dr. Tan Ba 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
5Medicare enrollment records show Tan Nguyen reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Anaheim, CA 92807
- Reassigned Medicare billing, California enrollment
- 95 clinicians in this Medicare group
Mission Viejo, CA 92691
- Reassigned Medicare billing, California enrollment
- 7 clinicians in this Medicare group
San Gabriel, CA 91776
- Reassigned Medicare billing, California enrollment
- 21 clinicians in this Medicare group
Monterey Park, CA 91754
- Reassigned Medicare billing, California enrollment
- 12 clinicians in this Medicare group
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 360 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.
Areas of Expertise CMS Part B claims 97
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 92807 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.
Reported Quality Measures
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ANAHEIM, CA 92807
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 1053668608. It was assigned to this individual provider in the NPPES registry on August 13, 2012.
Where is Tan Nguyen located?
Tan Nguyen practices at 5528 E La Palma Ave Ste 4A, Anaheim, CA 92807. The listed phone number is (714) 970-0200.
What is Tan Nguyen's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
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 5 organizations: Fullerton Radiology Medical Group, Inc (Anaheim, CA), Crown Valley Radiologists Inc A Professional Medical Corp (Mission Viejo, CA), David C P Chen, M.D., Inc (San Gabriel, CA), United Premier Physicians Inc (Monterey Park, CA) and Regents Of The University Of California (San Diego, 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 September 3, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.