Wilfred Farquharson, PH.D.
NPI 1669734133 · Psychologist · Stony Brook, NY
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wilfred Farquharson, PH.D. is a Psychologist provider in Stony Brook, NY (NPI 1669734133).
Provider details
- NPI number
- 1669734133
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 019230 (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
14 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
- 2012-06-11
- Last updated
- 2017-12-12
Frequently asked questions
- What is Wilfred Farquharson's NPI number?
- Wilfred Farquharson's National Provider Identifier (NPI) is 1669734133, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wilfred Farquharson's specialty?
- Wilfred Farquharson is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Wilfred Farquharson located?
- Wilfred Farquharson's practice location on file with NPPES is Putnam Hall South Campus, Stony Brook, NY 11790-0989.
- What is Wilfred Farquharson's phone number?
- The practice phone number listed in the NPPES registry for Wilfred Farquharson is (631) 632-8850.
- Does Wilfred Farquharson accept Medicare?
- Wilfred Farquharson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wilfred Farquharson's NPI active?
- Yes — Wilfred Farquharson's NPI (1669734133) is active in the NPPES registry as of the last update on 2017-12-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.