DR. DIEM-KHANH VICTORIA NGUYEN MD
NPI 1265282149
Psychiatry & Neurology - Psychiatry in Los Angeles, CA

Q: What is Diem-khanh Nguyen's NPI number?

The NPI number for Diem-khanh Nguyen is 1265282149. It was assigned to this individual provider in the NPPES registry on March 25, 2024.

Q: What is Diem-khanh 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 Diem-khanh Nguyen was last updated on July 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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 25, 2024PECOS Enrolled

1200 N STATE ST, CLINIC TOWER, SUITE A7D, LOS ANGELES, CA 90033(323) 409-5555 Get Directions Write a Review

NPPES record last updated: July 29, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Diem-khanh Victoria Nguyen Md NPPES

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

DR. DIEM-KHANH VICTORIA NGUYEN MD (NPI 1265282149) is an individual psychiatry provider in Los Angeles, California, licensed in California (15238) and active in the NPI registry since March 2024. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1265282149

Entity TypeIndividualFemale

Primary Taxonomy2084P0800X

Provider Legal NameDR. DIEM-KHANH VICTORIA NGUYENCredential: MD

Location Address1200 N STATE ST, CLINIC TOWER, SUITE A7DLos Angeles, CA 90033-1029

Mailing Address1200 N State St, Clinic Tower, Suite A7dLos Angeles, CA 90033-1029 · (323) 409-5555

Phone(323) 409-5555

Sole ProprietorYes

Enumeration DateMarch 25, 2024

Last NPPES UpdateJuly 29, 2025

NPPES CertifiedJuly 29, 2025

✔ NPI 1265282149 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in CA · 15238

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

1200 N STATE ST, Los Angeles, CA 90033

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Diem-khanh Victoria Nguyen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 90033 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 20

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

DR. LUCILLE CHAILLE

Orthopaedic Surgery

1200 N STATE ST
LOS ANGELES, CA 90033

Los Angeles County (323) 226-2170

DR. THIENDANG VIET NGUYEN M.D.

Anesthesiology

1200 N STATE ST, #14-901
LOS ANGELES, CA 90033

Los Angeles County (323) 409-7748

DR. PHIL ORALLO CASTILLO M.D.

Anesthesiology

1200 N STATE ST, ROOM 14-901
LOS ANGELES, CA 90033

Los Angeles County (323) 226-4597

NOA CARTER STERLING M.D.

Obstetrics & Gynecology

1200 N STATE ST, INPT TOWER C3F107
LOS ANGELES, CA 90033

Los Angeles County (323) 409-8847

CHRYSTAL LYNNE JONES RCP

Respiratory Therapist, Certified (Critical Care)

1200 N STATE ST
LOS ANGELES, CA 90033

Los Angeles County (323) 409-1000

MAY SUNDONGMEI WU RESP THERAPIST

Respiratory Therapist, Registered (Critical Care)

1200 N STATE ST
LOS ANGELES, CA 90033

Los Angeles County (323) 409-1824

BRETT BARRO

Student in an Organized Health Care Education/Training Program

1200 N STATE ST, CLINIC TOWER SUITE A7D
LOS ANGELES, CA 90033

Los Angeles County (213) 705-5282

ALBERT CHEN MD

Student in an Organized Health Care Education/Training Program

1200 N STATE ST, CLINIC TOWER, SUITE A7D
LOS ANGELES, CA 90033

Los Angeles County (323) 442-7686

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 Diem-khanh Nguyen's NPI number?

The NPI number for Diem-khanh Nguyen is 1265282149. It was assigned to this individual provider in the NPPES registry on March 25, 2024.

Where is Diem-khanh Nguyen located?

Diem-khanh Nguyen practices at 1200 N State St Clinic Tower, Suite A7d, Los Angeles, CA 90033. The listed phone number is (323) 409-5555.

What is Diem-khanh Nguyen's specialty?

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

Is Diem-khanh Nguyen enrolled in Medicare?

Yes. Diem-khanh Nguyen is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Diem-khanh Nguyen was last updated on July 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.