John Adler, PHD
NPI 1588645055 · Psychologist · Gresham, OR
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Adler, PHD is a Psychologist provider in Gresham, OR (NPI 1588645055).
Provider details
- NPI number
- 1588645055
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 0615 (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
- 2005-11-10
- Last updated
- 2017-12-07
Frequently asked questions
- What is John Adler's NPI number?
- John Adler's National Provider Identifier (NPI) is 1588645055, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Adler's specialty?
- John Adler is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is John Adler located?
- John Adler's practice location on file with NPPES is 510 Ne Roberts Ave, Gresham, OR 97030-7404.
- What is John Adler's phone number?
- The practice phone number listed in the NPPES registry for John Adler is (503) 251-4088.
- Does John Adler accept Medicare?
- John Adler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Adler's NPI active?
- Yes — John Adler's NPI (1588645055) is active in the NPPES registry as of the last update on 2017-12-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.