DANH TIEN NGUYEN MD
NPI 1003999103
Radiology - Diagnostic Radiology in Riverside, CA
About Danh Tien Nguyen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DANH TIEN NGUYEN MD (NPI 1003999103) is an individual diagnostic radiology provider in Riverside, California, licensed in California (A60382) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and is a graduate of Tufts University School Of Medicine (1994).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 2
Accepted Insurance
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
Danh Tien 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
16Medicare enrollment records show Danh Nguyen reassigns Medicare billing to 16 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Redlands, CA 92374
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1649599085 (California), NPI 1972826774 (California)
- 335 clinicians in this Medicare group
Fullerton, CA 92835
- Reassigned Medicare billing, California enrollment
- 53 clinicians in this Medicare group
Los Angeles, CA 90048
- Reassigned Medicare billing, California enrollment
- 2,118 clinicians in this Medicare group
Palm Desert, CA 92260
- Reassigned Medicare billing, California enrollment
- 278 clinicians in this Medicare group
Los Angeles, CA 90025
- Reassigned Medicare billing, California enrollment
- 311 clinicians in this Medicare group
Encino, CA 91436
- Reassigned Medicare billing, California enrollment
- 329 clinicians in this Medicare group
Tehachapi, CA 93561
- Reassigned Medicare billing, California enrollment
- 252 clinicians in this Medicare group
Fresno, CA 93710
- Reassigned Medicare billing, California enrollment
- 232 clinicians in this Medicare group
Modesto, CA 95350
- Reassigned Medicare billing, California enrollment
- 219 clinicians in this Medicare group
Gilbert, AZ 85234
- Reassigned Medicare billing, Arizona and California enrollments
- 41 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 104
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 92506 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.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
RIVERSIDE, CA 92506
RIVERSIDE, CA 92506
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 Danh Nguyen's NPI number?
The NPI number for Danh Nguyen is 1003999103. It was assigned to this individual provider in the NPPES registry on October 23, 2006. The provider is also known as John Tien Nguyen MD.
Where is Danh Nguyen located?
Danh Nguyen practices at 4334 Central Ave, Riverside, CA 92506. The listed phone number is (951) 682-7580.
What is Danh Nguyen's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Danh Nguyen enrolled in Medicare?
Yes. Danh 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 Danh Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Danh Nguyen reassigns Medicare benefits to 16 organizations: Beverly Radiology Medical Group III (Redlands, CA), St Jude Radiology Medical Group Inc (Fullerton, CA), Cedars-Sinai Medical Care Foundation (Los Angeles, CA), Desert Advanced Imaging Medical Center (Palm Desert, CA), Pronet Imaging Medical Group, Inc. (Los Angeles, CA) and 11 more organizations, listed in the Medicare section above. 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 Danh Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Danh Nguyen accept?
Health plans from Blue Cross Blue Shield of Arizona list Danh Nguyen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Danh Nguyen was last updated on March 7, 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.