Douglas Williams, PSY.D.
NPI 1821087396 · Clinical Psychologist · West Springfield, MA
Douglas Williams, PSY.D. is a Clinical Psychologist provider in West Springfield, MA (NPI 1821087396).
Provider details
- NPI number
- 1821087396
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 4546 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
- 2005-10-18
- Last updated
- 2007-07-09
Frequently asked questions
- What is Douglas Williams's NPI number?
- Douglas Williams's National Provider Identifier (NPI) is 1821087396, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Williams's specialty?
- Douglas Williams is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Douglas Williams located?
- Douglas Williams's practice location on file with NPPES is 380 Union St, West Springfield, MA 01089-4123.
- What is Douglas Williams's phone number?
- The practice phone number listed in the NPPES registry for Douglas Williams is (413) 734-2676.
- Is Douglas Williams's NPI active?
- Yes — Douglas Williams's NPI (1821087396) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.