William Somerville, PHD
NPI 1891181368 · Clinical Psychologist · Ridgewood, NY
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Somerville, PHD is a Clinical Psychologist provider in Ridgewood, NY (NPI 1891181368).
Provider details
- NPI number
- 1891181368
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 022436 (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
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 1650 Bedford Ave Rm B-1005Brooklyn, NY 11225-2010Phone: (718) 270-4980
Registry dates
- Enumerated
- 2015-04-12
- Last updated
- 2019-11-17
Frequently asked questions
- What is William Somerville's NPI number?
- William Somerville's National Provider Identifier (NPI) is 1891181368, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Somerville's specialty?
- William Somerville is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is William Somerville located?
- William Somerville's practice location on file with NPPES is 1639 Centre St # 141, Ridgewood, NY 11385-5335.
- What is William Somerville's phone number?
- The practice phone number listed in the NPPES registry for William Somerville is (718) 594-2458.
- Does William Somerville accept Medicare?
- William Somerville is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Somerville's NPI active?
- Yes — William Somerville's NPI (1891181368) is active in the NPPES registry as of the last update on 2019-11-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.