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

Dr. William Brennan, PHD

Individual provider Counseling Psychologist · NPI 1497512909

Dr. William Brennan, PHD is a Counseling Psychologist in Woodside, New York. Practices as a sole proprietor. Registered with an NPI since 2024.

In the registry since
2024
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

4067 61st St Apt 1D
Woodside, NY 11377-4990
Phone: (516) 902-9483
Show map & directions

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

Specialties & licences

Counseling Psychologist (primary) Taxonomy 103TC1900X

Record details

NPI number1497512909
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMarch 1, 2024
Last updated in NPPESMarch 1, 2024
Certification dateMarch 1, 2024
Mailing address4067 61st St Apt 1d, Woodside, NY 11377-4990

Other providers in Woodside