Douglas William, PH.D.
NPI 1871632489 · Clinical Child & Adolescent Psychologist · Jericho, NY
Douglas William, PH.D. is a Clinical Child & Adolescent Psychologist provider in Jericho, NY (NPI 1871632489).
Provider details
- NPI number
- 1871632489
- Entity type
- Individual
- Primary specialty
- Clinical Child & Adolescent PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 6159 (NY)
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
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
Mailing address
Registry dates
- Enumerated
- 2007-02-06
- Last updated
- 2007-07-08
Frequently asked questions
- What is Douglas William's NPI number?
- Douglas William's National Provider Identifier (NPI) is 1871632489, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas William's specialty?
- Douglas William is listed in the NPPES registry with a primary specialty of Clinical Child & Adolescent Psychologist (Behavioral Health & Social Service Providers).
- Where is Douglas William located?
- Douglas William's practice location on file with NPPES is 30 Flower Ln, Jericho, NY 11753-2312.
- What is Douglas William's phone number?
- The practice phone number listed in the NPPES registry for Douglas William is (516) 931-0752.
- Is Douglas William's NPI active?
- Yes — Douglas William's NPI (1871632489) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.