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

Individual provider Clinical Neuropsychologist · NPI 1023065653

Prof. William S. Macallister, PHD is a Clinical Neuropsychologist in New York, New York. Licensed in New York. Registered with an NPI since 2006.

Licensed in
NY
In the registry since
2006
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

223 E 34th St
New York, NY 10016-4852
Phone: (646) 558-0809
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Neuropsychologist (primary) Taxonomy 103G00000X · Licence 015665 (NY)

Record details

NPI number1023065653
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedMay 28, 2006
Last updated in NPPESDecember 13, 2011

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