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XUANMAI NGUYEN
NPI 1083022941
Dietitian, Registered in Fountain Valley, CA

Active since July 23, 2014
17360 BROOKHURST ST, ATTN: REGISTERED DIETITIAN DEPARTMENT, FOUNTAIN VALLEY, CA 92708(714) 916-0881(714) 916-0407 Get Directions Write a Review

NPPES record last updated: June 9, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jun 9, 2020, Mar 15, 2019 (2 updates tracked since 2019).

About Xuanmai Nguyen NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

XUANMAI NGUYEN (NPI 1083022941) is an individual dietitian, registered in Fountain Valley, California, licensed in California (1068611) and active in the NPI registry since July 2014.

NPPES Registry Identity

NPI1083022941
Entity TypeIndividualFemale
Primary Taxonomy133V00000X
Provider Legal NameXUANMAI NGUYEN
Location Address17360 BROOKHURST ST, ATTN: REGISTERED DIETITIAN DEPARTMENTFountain Valley, CA 92708-3720
Mailing Address17360 Brookhurst StFountain Valley, CA 92708-3720
Phone(714) 916-0881
Fax(714) 916-0407
Sole ProprietorNo
Enumeration DateJuly 23, 2014
Last NPPES UpdateJune 9, 20202 updates tracked since enumeration
NPPES CertifiedJune 9, 2020
✔ NPI 1083022941 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDietitian, RegisteredDietary & Nutritional Service Providers
Taxonomy Code133V00000X
License✔ Licensed in CA · 1068611
Definition
A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.
17360 BROOKHURST ST, Fountain Valley, CA 92708
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Xuanmai Nguyen is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

Medicare enrollment records show Xuanmai Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Memorialcare Medical Foundation
Same address
Clinic/Center
17360 BROOKHURST ST
Fountain Valley, CA 92708
  • Reassigned Medicare billing, California enrollment
  • 948 clinicians in this Medicare group
NPI 1205167350 (877) 696-3622

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

DR. VINA NGUYEN M. D.
Hospitalist
17360 BROOKHURST ST
FOUNTAIN VALLEY, CA 92708
Orange County (714) 665-1797
DR. PAUL D SYCHANGCO M.D,
Internal Medicine
17360 BROOKHURST ST
FOUNTAIN VALLEY, CA 92708
Orange County (877) 844-0012
MARYANNE ROSE IBRAHIM M.D.
Internal Medicine
17360 BROOKHURST ST
FOUNTAIN VALLEY, CA 92708
Orange County (714) 665-4614
DR. LYDIA MICHELLE SIMON PHARM.D.
Pharmacist
17360 BROOKHURST ST
FOUNTAIN VALLEY, CA 92708
Orange County (657) 241-3248
MS. JUDY ANN PICAZO N.P.
Nurse Practitioner
17360 BROOKHURST ST
FOUNTAIN VALLEY, CA 92708
Orange County (714) 944-1771
TANYA DANSKY M.D.
Pediatrics
17360 BROOKHURST ST
FOUNTAIN VALLEY, CA 92708
Orange County (714) 377-2900
STACY MARIE BALDWIN FNP-BC
Nurse Practitioner (Family)
17360 BROOKHURST ST
FOUNTAIN VALLEY, CA 92708
Orange County (877) 844-0012
EDDIE LY M.D.
Internal Medicine
17360 BROOKHURST ST
FOUNTAIN VALLEY, CA 92708
Orange County (714) 665-1797

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 Xuanmai Nguyen's NPI number?

The NPI number for Xuanmai Nguyen is 1083022941. It was assigned to this individual provider in the NPPES registry on July 23, 2014.

Where is Xuanmai Nguyen located?

Xuanmai Nguyen practices at 17360 Brookhurst St Attn: Registered Dietitian Department, Fountain Valley, CA 92708. The listed phone number is (714) 916-0881.

What is Xuanmai Nguyen's specialty?

The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.

Is Xuanmai Nguyen enrolled in Medicare?

Yes. Xuanmai Nguyen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Xuanmai Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Xuanmai Nguyen reassigns Medicare benefits to Memorialcare Medical Foundation (Fountain Valley, CA). The 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 Xuanmai 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 Xuanmai Nguyen was last updated on June 9, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.