Y VIEN TRAN NGUYEN D.O.
NPI 1811135627
Radiology - Body Imaging in Mission Viejo, CA
About Y Vien Tran Nguyen D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
Y VIEN TRAN NGUYEN D.O. (NPI 1811135627) is an individual body imaging provider in Mission Viejo, California, licensed in California (20A12652) and active in the NPI registry since February 2009. She is enrolled in Medicare PECOS and is a graduate of At Still University Of Health Sciences, College Of Osteo Med, Kirksville (2006).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
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
Y Vien Tran Nguyen D.o. 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
13Medicare enrollment records show Y Vien Nguyen reassigns Medicare billing to 13 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mission Viejo, CA 92691
- Reassigned Medicare billing, California enrollment
- 28 clinicians in this Medicare group
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 202 clinicians in this Medicare group
Anaheim, CA 92801
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1649599085 (California), NPI 1801159736 (California)
- 349 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
Palm Desert, CA 92260
- Reassigned Medicare billing, California enrollment
- 278 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
Fremont, CA 94538
- Reassigned Medicare billing, California enrollment
- 238 clinicians in this Medicare group
Stockton, CA 95210
- Reassigned Medicare billing, California enrollment
- 219 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 15
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.
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MISSION VIEJO, CA 92691
MISSION VIEJO, CA 92691
MISSION VIEJO, CA 92691
MISSION VIEJO, CA 92691
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 Y Vien Nguyen's NPI number?
The NPI number for Y Vien Nguyen is 1811135627. It was assigned to this individual provider in the NPPES registry on February 2, 2009.
Where is Y Vien Nguyen located?
Y Vien Nguyen practices at 27700 Medical Center Rd, Mission Viejo, CA 92691. The listed phone number is (949) 364-7744.
What is Y Vien Nguyen's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Body Imaging, with taxonomy code 2085B0100X.
Is Y Vien Nguyen enrolled in Medicare?
Yes. Y Vien 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 Y Vien Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Y Vien Nguyen reassigns Medicare benefits to 13 organizations: Coast Radiology Imaging And Intervention Inc (Mission Viejo, CA), Uc Regents (Orange, CA), Beverly Radiology Medical Group III (Anaheim, CA), Pronet Imaging Medical Group, Inc. (Los Angeles, CA), San Fernando Valley Interventional Radiology And Imaging Center (Encino, CA) and 8 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 Y Vien 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 Y Vien Nguyen was last updated on June 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Y Vien Tran Nguyen, D.O. · NPI 1811135627
Body Imaging physician in Mission Viejo, California. Individual provider, active in the CMS NPPES registry since February 2, 2009.
## Identity
- **NPI:** 1811135627 (Entity type: Individual)
- **Enumerated:** February 2, 2009
- **Primary specialty:** Radiology - Body Imaging · taxonomy 2085B0100X
- **State license:** 20A12652 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 27700 MEDICAL CENTER RD, Mission Viejo, CA 92691-6426
- **Phone:** (949) 364-7744
## 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:** 13 organizations under Medicare reassignment (form CMS-855R): Coast Radiology Imaging And Intervention Inc (NPI 1376690636, Mission Viejo, CA); Uc Regents (NPI 1346298528, Orange, CA); Beverly Radiology Medical Group III (NPI 1972826774, Anaheim, CA); Pronet Imaging Medical Group, Inc. (NPI 1528099488, Los Angeles, CA); San Fernando Valley Interventional Radiology And Imaging Center (NPI 1942350889, Encino, CA); and 8 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** At Still University Of Health Sciences, College Of Osteo Med, Kirksville, class of 2006
## Record status
- **NPPES last updated:** June 16, 2025
- **Other identifiers:** Medicaid 1376690636 (CA); Other 0020A126520 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1811135627) · Data from the CMS NPPES public registry.