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

Dr. Gerard Thomas McNicholas, PSYD

Individual provider Clinical Psychologist · NPI 1558995613

Dr. Gerard Thomas McNicholas, PSYD is a Clinical Psychologist in Islandia, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2020
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

See every abbreviation used in this directory →

Practice location Address checks out

3760 Expressway Dr S Fl 1
Islandia, NY 11749-5522
Phone: (516) 302-7599
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 023665 (NY)

Record details

NPI number1558995613
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorYes
NPI enumeratedFebruary 27, 2020
Last updated in NPPESFebruary 27, 2020
Certification dateFebruary 27, 2020