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

Addette L Williams, PHD

Individual provider Psychologist · NPI 1720298532

Addette L Williams, PHD is a Psychologist in New York, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2007
Specialties on file
3
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

330 W 58th St Ste 611
New York, NY 10019-1827
Phone: (917) 209-5199
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 015131 (NY)
Clinical Psychologist Taxonomy 103TC0700X · Licence 015131 (NY)
Clinical Child & Adolescent Psychologist Taxonomy 103TC2200X · Licence 015131 (NY)

Record details

NPI number1720298532
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedMay 23, 2007
Last updated in NPPESSeptember 11, 2025

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