Alec Mendelson, PH.D.
NPI 1508848383 · Clinical Psychologist · Gresham, OR
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alec Mendelson, PH.D. is a Clinical Psychologist provider in Gresham, OR (NPI 1508848383).
Provider details
- NPI number
- 1508848383
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 787 (OR)
Specialties & taxonomies
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
20 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
Mailing address
Registry dates
- Enumerated
- 2005-11-16
- Last updated
- 2023-09-06
Frequently asked questions
- What is Alec Mendelson's NPI number?
- Alec Mendelson's National Provider Identifier (NPI) is 1508848383, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alec Mendelson's specialty?
- Alec Mendelson is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Alec Mendelson located?
- Alec Mendelson's practice location on file with NPPES is 1550 Nw Eastman Pkwy, Gresham, OR 97030-3858.
- What is Alec Mendelson's phone number?
- The practice phone number listed in the NPPES registry for Alec Mendelson is (503) 665-4357.
- Does Alec Mendelson accept Medicare?
- Alec Mendelson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alec Mendelson's NPI active?
- Yes — Alec Mendelson's NPI (1508848383) is active in the NPPES registry as of the last update on 2023-09-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.