Peter Williams, PH.D.
NPI 1609926609 · Clinical Psychologist · Newburyport, MA
Peter Williams, PH.D. is a Clinical Psychologist provider in Newburyport, MA (NPI 1609926609).
Provider details
- NPI number
- 1609926609
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 3525 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
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
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
- 2007-01-11
- Last updated
- 2025-09-11
Frequently asked questions
- What is Peter Williams's NPI number?
- Peter Williams's National Provider Identifier (NPI) is 1609926609, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Williams's specialty?
- Peter Williams is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Peter Williams located?
- Peter Williams's practice location on file with NPPES is 5 67th St, Newburyport, MA 01950-4444.
- What is Peter Williams's phone number?
- The practice phone number listed in the NPPES registry for Peter Williams is (978) 465-3366.
- Is Peter Williams's NPI active?
- Yes — Peter Williams's NPI (1609926609) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.