Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Mark Downey, PHD

Individual provider Clinical Psychologist · NPI 1619646395

Dr. Mark Downey, PHD is a Clinical Psychologist in Riverside, California. Licensed in California. Registered with an NPI since 2021.

Licensed in
CA
In the registry since
2021
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

5005 Canyon Crest Dr
Riverside, CA 92507-7721
Phone: (747) 224-2090
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 36676 (CA)

Record details

NPI number1619646395
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedSeptember 7, 2021
Last updated in NPPESMay 18, 2026
Certification dateMay 18, 2026
Mailing address3004 Meridian St, Bellingham, WA 98225-1724

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