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

Dr. William M Hay, PHD

Individual provider Psychologist · NPI 1477066215

Dr. William M Hay, PHD is a Psychologist in Princeton, New Jersey. Practices as a sole proprietor. Licensed in New Jersey.

Licensed in
NJ
In the registry since
2017
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

344 Nassau St Ste 101
Princeton, NJ 08540-4622
Phone: (609) 924-0880
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 35SI00141100 (NJ)

Record details

NPI number1477066215
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedNovember 15, 2017
Last updated in NPPESNovember 15, 2017
Mailing address344 Nassau St Ste 101, Princeton, NJ 08540-4622

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