DR. DAU VAN NGUYEN M.D.
NPI 1578515375
Psychiatry & Neurology - Psychiatry in San Bernardino, CA

Q: What is Dau Nguyen's NPI number?

The NPI number for Dau Nguyen is 1578515375. It was assigned to this individual provider in the NPPES registry on May 17, 2006.

Q: What is Dau 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 Dau Nguyen was last updated on February 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.

Active since May 17, 2006PECOS Enrolled

303 E VANDERBILT WAY, SAN BERNARDINO, CA 92415(909) 252-5149 Get Directions Write a Review

NPPES record last updated: February 3, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 3, 2021, Apr 27, 2018 (2 updates tracked since 2018).

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About Dr. Dau Van Nguyen M.d. NPPES

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

DR. DAU VAN NGUYEN M.D. (NPI 1578515375) is an individual psychiatry provider in San Bernardino, California, licensed in California (A67773) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1578515375

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameDR. DAU VAN NGUYENCredential: M.D.

Location Address303 E VANDERBILT WAYSan Bernardino, CA 92415-0026

Mailing Address303 E Vanderbilt WaySan Bernardino, CA 92415-0026 · (909) 252-5149

Phone(909) 252-5149

Sole ProprietorNo

Enumeration DateMay 17, 2006

Last NPPES UpdateFebruary 3, 20212 updates tracked since enumeration

NPPES CertifiedFebruary 3, 2021

✔ NPI 1578515375 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in CA · A67773

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.

303 E VANDERBILT WAY, San Bernardino, CA 92415

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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)

Dr. Dau Van Nguyen M.d. 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.

Medicare Billing Reassignments

Medicare enrollment records show Dau Nguyen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

County Of San Bernardino

Same address

Mental Health (Including Community Mental Health Center)

303 E VANDERBILT WAY
San Bernardino, CA 92415

Reassigned Medicare billing, California enrollment
233 clinicians in this Medicare group

NPI 1164467023 (909) 388-0801

Department Of State Hospitals

46 mi

Psychiatric Hospital

11401 BLOOMFIELD AVE
Norwalk, CA 90650

Reassigned Medicare billing, California enrollment
755 clinicians in this Medicare group

NPI 1265406565 (562) 863-7011

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92415 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

$179.42 typical visit price

range $59.60 – $179.42

Typical copayment $44.85 (range $14.90 – $44.85)

Most-billed visit code 99205

Established Patient

$74.08 typical visit price

range $19.37 – $146.42

Typical copayment $18.52 (range $4.84 – $36.60)

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.

ANTOINETTE AZAR M.D.

Psychiatry & Neurology (Child & Adolescent Psychiatry)