DR. MARK V. HUNG NGUYEN ED.D. PSY.D.
NPI 1487288619
Psychologist in Garden Grove, CA

Active since February 26, 2020PECOS Enrolled
14152 BOWEN ST, GARDEN GROVE, CA 92843(714) 724-5722 Get Directions Write a Review

NPPES record last updated: February 11, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 5, 2025, Feb 27, 2020 (2 updates tracked since 2020).

About Dr. Mark V. Hung Nguyen Ed.d. Psy.d. NPPES

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

DR. MARK V. HUNG NGUYEN ED.D. PSY.D. (NPI 1487288619) is an individual psychologist in Garden Grove, California, licensed in California (29174) and active in the NPI registry since February 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2014).

NPPES Registry Identity

NPI1487288619
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameDR. MARK V. HUNG NGUYENCredential: ED.D. PSY.D.
Location Address14152 BOWEN STGarden Grove, CA 92843-4803
Mailing Address14152 Bowen StGarden Grove, CA 92843-4803 · (714) 724-5722
Sole ProprietorYes
Medical School CMSOtherGraduated 2014
Enumeration DateFebruary 26, 2020
Last NPPES UpdateFebruary 11, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 11, 2026
NPI 1487288619 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License Licensed in CA · 29174
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
Also ListedPsychologist · SchoolTaxonomy 103TS0200X · License 220233393 (CA)
14152 BOWEN ST, Garden Grove, CA 92843

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. Mark V. Hung Nguyen Ed.d. Psy.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID345738837
PECOS Enrollment IDI20251024004238
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.

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 Mark Nguyen's NPI number?

The NPI number for Mark Nguyen is 1487288619. It was assigned to this individual provider in the NPPES registry on February 26, 2020.

Where is Mark Nguyen located?

Mark Nguyen practices at 14152 Bowen St, Garden Grove, CA 92843. The listed phone number is (714) 724-5722.

What is Mark Nguyen's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is Mark Nguyen enrolled in Medicare?

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

When was this NPI record last updated?

The NPPES record for Mark Nguyen was last updated on February 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.