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

William Holland, PHD

Individual provider Clinical Psychologist · NPI 1265373203

William Holland, PHD is a Clinical Psychologist in New York, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2026
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

300 Central Park W Apt 1C
New York, NY 10024-1590
Phone: (917) 848-0305
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 028118 (NY)

Record details

NPI number1265373203
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedApril 3, 2026
Last updated in NPPESApril 3, 2026
Certification dateApril 3, 2026

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