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GULIA PHUONG KHANH NGUYEN
NPI 1528605490
Marriage & Family Therapist in Los Angeles, CA

Active since December 10, 2019PECOS EnrolledAccepts Medicare Assignment
2121 W TEMPLE ST, LOS ANGELES, CA 90026(213) 385-5100 Get Directions Write a Review

NPPES record last updated: May 2, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 21, 2021, Jun 29, 2021, Dec 10, 2019 (3 updates tracked since 2019).

About Gulia Phuong Khanh Nguyen NPPES

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

GULIA PHUONG KHANH NGUYEN (NPI 1528605490) is an individual marriage & family therapist in Los Angeles, California, licensed in California (154913) and active in the NPI registry since December 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1528605490
Entity TypeIndividualFemale
Primary Taxonomy106H00000X
Provider Legal NameGULIA PHUONG KHANH NGUYEN
Location Address2121 W TEMPLE STLos Angeles, CA 90026-4915
Mailing Address2121 W Temple StLos Angeles, CA 90026-4915 · (213) 385-5100
Phone(213) 385-5100
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateDecember 10, 2019
Last NPPES UpdateMay 2, 20253 updates tracked since enumeration
NPPES CertifiedMay 2, 2025
✔ NPI 1528605490 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
Licenses✔ Licensed in CA · 154913✔ Licensed in CA · 127061
Definition
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.
Also ListedCase Manager/Care CoordinatorTaxonomy 171M00000X
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
2121 W TEMPLE ST, Los Angeles, CA 90026
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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 and accepts Medicare assignment

Gulia Phuong Khanh Nguyen 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.

PECOS PAC ID9335638832
PECOS Enrollment IDI20251026000071
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

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

Orange County Health Psychologists, Inc.
41 mi
Clinical
7700 IRVINE CENTER DR, SUITE 800
Irvine, CA 92618
  • Reassigned Medicare billing, California enrollment
  • 78 clinicians in this Medicare group
NPI 1174945554 (949) 528-6300

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.

RONALD FERNANDES
Counselor (Professional)
2121 W TEMPLE ST
LOS ANGELES, CA 90026
Los Angeles County (213) 385-5100
SAMANTHA DIAZ
Social Worker (Clinical)
2121 W TEMPLE ST
LOS ANGELES, CA 90026
Los Angeles County (213) 385-5100
NANCY WATT LMFT
Marriage & Family Therapist
2121 W TEMPLE ST
LOS ANGELES, CA 90026
Los Angeles County (213) 385-5100
CRYSTAL VIANA GOMEZ GUERRA
Peer Specialist
2121 W TEMPLE ST
LOS ANGELES, CA 90026
Los Angeles County (323) 385-5100
MS. LAYLA ZOE SUMMERS
Student in an Organized Health Care Education/Training Program
2121 W TEMPLE ST
LOS ANGELES, CA 90026
Los Angeles County (213) 260-7600
JESSICA DAWODU
Case Manager/Care Coordinator
2121 W TEMPLE ST
LOS ANGELES, CA 90026
Los Angeles County (213) 385-5100
SARAH BELARDE
Social Worker (Clinical)
2121 W TEMPLE ST
LOS ANGELES, CA 90026
Los Angeles County (213) 385-5100
AMANDA MIGUEZ ASW
Social Worker (Clinical)
2121 W TEMPLE ST
LOS ANGELES, CA 90026
Los Angeles County (213) 385-5100

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 Gulia Nguyen's NPI number?

The NPI number for Gulia Nguyen is 1528605490. It was assigned to this individual provider in the NPPES registry on December 10, 2019.

Where is Gulia Nguyen located?

Gulia Nguyen practices at 2121 W Temple St, Los Angeles, CA 90026. The listed phone number is (213) 385-5100.

What is Gulia Nguyen's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Is Gulia Nguyen enrolled in Medicare?

Yes. Gulia 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 organization bills Medicare for Gulia Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gulia Nguyen reassigns Medicare benefits to Orange County Health Psychologists, Inc. (Irvine, 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 Gulia 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 Gulia Nguyen was last updated on May 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.