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Mark Downey, PH.D.
NPI 1619646395 · Clinical Psychologist · Riverside, CA
Mark Downey, PH.D. is a Clinical Psychologist provider in Riverside, CA (NPI 1619646395).
Provider details
- NPI number
- 1619646395
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 36676 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(62/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
5005 Canyon Crest Dr
Riverside, CA 92507-7721
Phone: (747) 224-2090
Street-level locationGet directions
Mailing address
3004 Meridian St
Bellingham, WA 98225-1724
Registry dates
- Enumerated
- 2021-09-07
- Last updated
- 2026-05-18
- Certified
- 2026-05-18
Frequently asked questions
- What is Mark Downey's NPI number?
- Mark Downey's National Provider Identifier (NPI) is 1619646395, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Downey's specialty?
- Mark Downey is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Mark Downey located?
- Mark Downey's practice location on file with NPPES is 5005 Canyon Crest Dr, Riverside, CA 92507-7721.
- What is Mark Downey's phone number?
- The practice phone number listed in the NPPES registry for Mark Downey is (747) 224-2090.
- Is Mark Downey's NPI active?
- Yes — Mark Downey's NPI (1619646395) is active in the NPPES registry as of the last update on 2026-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.