Peter Youssef
NPI 1235714171 · Psychologist · San Dimas, CA
Peter Youssef is a Psychologist provider in San Dimas, CA (NPI 1235714171).
Provider details
- NPI number
- 1235714171
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Behavior Technician106S00000X
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Mailing address
Additional practice locations (1)
- 801 Corporate Center Dr Ste 210Pomona, CA 91768-2627Phone: (909) 618-0974
Registry dates
- Enumerated
- 2021-03-12
- Last updated
- 2025-03-27
- Certified
- 2025-03-27
Frequently asked questions
- What is Peter Youssef's NPI number?
- Peter Youssef's National Provider Identifier (NPI) is 1235714171, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Youssef's specialty?
- Peter Youssef is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Peter Youssef located?
- Peter Youssef's practice location on file with NPPES is 150 W Foothill Blvd Unit a, San Dimas, CA 91773-1103.
- What is Peter Youssef's phone number?
- The practice phone number listed in the NPPES registry for Peter Youssef is (626) 507-3585.
- Is Peter Youssef's NPI active?
- Yes — Peter Youssef's NPI (1235714171) is active in the NPPES registry as of the last update on 2025-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.