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DR. MARK DOWNEY PH.D.
NPI 1619646395
Psychologist - Clinical in Riverside, CA

Active since September 07, 2021
5005 CANYON CREST DR, RIVERSIDE, CA 92507(747) 224-2090 Get Directions Write a Review

NPPES record last updated: May 18, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 18, 2026, Sep 7, 2021 (2 updates tracked since 2021).

About Dr. Mark Downey Ph.d. NPPES

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

DR. MARK DOWNEY PH.D. (NPI 1619646395) is an individual clinical provider in Riverside, California, licensed in California (36676) and active in the NPI registry since September 2021.

NPPES Registry Identity

NPI1619646395
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameDR. MARK DOWNEYCredential: PH.D.
Location Address5005 CANYON CREST DRRiverside, CA 92507-7721
Mailing Address3004 Meridian StBellingham, WA 98225-1724 · (818) 934-1404
Phone(747) 224-2090
Sole ProprietorNo
Enumeration DateSeptember 7, 2021
Last NPPES UpdateMay 18, 20262 updates tracked since enumeration
NPPES CertifiedMay 18, 2026
✔ NPI 1619646395 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in CA · 36676
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
5005 CANYON CREST DR, Riverside, CA 92507
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Other Providers at the Same Location NPPES 11

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

EMILY VIZCARRA
Behavior Analyst
5005 CANYON CREST DR
RIVERSIDE, CA 92507
Riverside County (951) 346-4860
BELLA HUIZI QIN
Behavior Analyst
5005 CANYON CREST DR
RIVERSIDE, CA 92507
Riverside County (206) 953-9268
ROXANA RABADI
Psychologist (Clinical)
5005 CANYON CREST DR
RIVERSIDE, CA 92507
Riverside County (747) 224-2090
LEILI ZARBAKHSH INTEGRATED INDIVIDUAL AND FAMILY THERAPY PROF. CORP.
Psychologist
5005 CANYON CREST DR
RIVERSIDE, CA 92507
Riverside County (747) 447-2090
TAIQUIRA WILLIAMS BCAT
Behavior Technician
5005 CANYON CREST DR
RIVERSIDE, CA 92507
Riverside County (951) 346-4860
HO EUN PARK
Behavior Analyst
5005 CANYON CREST DR
RIVERSIDE, CA 92507
Riverside County (818) 401-0661
MARY MARIE MCRAE
Student in an Organized Health Care Education/Training Program
5005 CANYON CREST DR
RIVERSIDE, CA 92507
Riverside County (323) 825-9182
BELYNDA TREADWELL
Behavior Analyst
5005 CANYON CREST DR
RIVERSIDE, CA 92507
Riverside County (951) 346-4860

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 Downey's NPI number?

The NPI number for Mark Downey is 1619646395. It was assigned to this individual provider in the NPPES registry on September 7, 2021.

Where is Mark Downey located?

Mark Downey practices at 5005 Canyon Crest Dr, Riverside, CA 92507. The listed phone number is (747) 224-2090.

What is Mark Downey's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Mark Downey was last updated on May 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.