IndividualActive
John Warrington, PH.D.
NPI 1639188535 · Psychologist · Duarte, CA
John Warrington, PH.D. is a Psychologist provider in Duarte, CA (NPI 1639188535).
Provider details
- NPI number
- 1639188535
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY 20819 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
931 Buena Vista St
Suite 307
Duarte, CA 91010-1712
Phone: (626) 548-6122
Fax: (626) 236-4084
Street-level locationGet directions
Mailing address
968 Buena Vista St
Duarte, CA 91010-1717
Registry dates
- Enumerated
- 2006-08-07
- Last updated
- 2016-03-15
Frequently asked questions
- What is John Warrington's NPI number?
- John Warrington's National Provider Identifier (NPI) is 1639188535, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Warrington's specialty?
- John Warrington is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is John Warrington located?
- John Warrington's practice location on file with NPPES is 931 Buena Vista St, Duarte, CA 91010-1712.
- What is John Warrington's phone number?
- The practice phone number listed in the NPPES registry for John Warrington is (626) 548-6122.
- Is John Warrington's NPI active?
- Yes — John Warrington's NPI (1639188535) is active in the NPPES registry as of the last update on 2016-03-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.