HIEU TRUNG NGUYEN
NPI 1891444725
Psychiatry & Neurology - Psychiatry in Ladera Ranch, CA

Q: What is Hieu Nguyen's NPI number?

The NPI number for Hieu Nguyen is 1891444725. It was assigned to this individual provider in the NPPES registry on March 18, 2022.

Q: What is Hieu Nguyen's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for Hieu Nguyen was last updated on January 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.

Active since March 18, 2022PECOS Enrolled

333 CORPORATE DR STE 260, LADERA RANCH, CA 92694(949) 768-2988(949) 768-2980 Get Directions Write a Review

NPPES record last updated: January 8, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 8, 2026, Dec 9, 2025, Dec 5, 2025 and 1 more (4 updates tracked since 2023).

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About Hieu Trung Nguyen NPPES

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

HIEU TRUNG NGUYEN (NPI 1891444725) is an individual psychiatry provider in Ladera Ranch, California, licensed in California (A206241) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of Washington School Of Medicine (2022).

NPPES Registry Identity

NPI1891444725

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameHIEU TRUNG NGUYEN

Location Address333 CORPORATE DR STE 260Ladera Ranch, CA 92694-2180

Mailing Address333 Corporate Dr Ste 260Ladera Ranch, CA 92694-2180 · (949) 768-2988 · Fax (949) 768-2980

Phone(949) 768-2988

Fax(949) 768-2980

Sole ProprietorNo

Medical School CMSUniversity Of Washington School Of MedicineGraduated 2022

Enumeration DateMarch 18, 2022

Last NPPES UpdateJanuary 8, 20264 updates tracked since enumeration

NPPES CertifiedJanuary 8, 2026

✔ NPI 1891444725 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

Licenses✔ Licensed in CA · A206241✔ Licensed in WA · MD61588870

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

333 CORPORATE DR STE 260, Ladera Ranch, CA 92694

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Secondary Practice Locations 2

Location 16400 Southcenter BlvdTukwila, WA 98188-2547 · Phone (206) 901-2000 · Fax (206) 901-2010

Location 21959 NE Pacific St # 356560Seattle, WA 98195-3321 · Phone (206) 543-4292

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

PECOS PAC ID9830685122

PECOS Enrollment IDI20260107001001

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92694 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$187.60 typical visit price

range $62.96 – $187.60

Typical copayment $46.90 (range $15.74 – $46.90)

Most-billed visit code 99205

Established Patient

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MOHAMED EL-MENSHAWI MD

Psychiatry & Neurology (Psychiatry)