William Farrell, PH.D
NPI 1023221348 · Clinical Psychologist · Huntington, NY
William Farrell, PH.D is a Clinical Psychologist provider in Huntington, NY (NPI 1023221348).
Provider details
- NPI number
- 1023221348
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D
- Sex
- Male
- Sole proprietor
- Yes
- License
- 6601 (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
- 2007-05-07
- Last updated
- 2012-10-09
Frequently asked questions
- What is William Farrell's NPI number?
- William Farrell's National Provider Identifier (NPI) is 1023221348, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Farrell's specialty?
- William Farrell is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is William Farrell located?
- William Farrell's practice location on file with NPPES is 7 High St, Huntington, NY 11743-7605.
- What is William Farrell's phone number?
- The practice phone number listed in the NPPES registry for William Farrell is (631) 423-2767.
- Is William Farrell's NPI active?
- Yes — William Farrell's NPI (1023221348) is active in the NPPES registry as of the last update on 2012-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.