Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. William John Farrell, PHD

Individual provider Clinical Psychologist · NPI 1023221348

Dr. William John Farrell, PHD is a Clinical Psychologist in Huntington, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2007
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

7 High St Ste 207
Huntington, NY 11743-7605
Phone: (631) 423-2767
Fax: (631) 424-0991
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 6601 (NY)

Record details

NPI number1023221348
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMay 7, 2007
Last updated in NPPESOctober 9, 2012

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