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

Individual provider Psychologist · NPI 1992322960

Dr. William Nana Osei, PHD is a Clinical Psychologist in Brooklyn, New York. Qualified in 2020, 6 years ago. Licensed in New York and Pennsylvania.

Years since qualifying
6
Licensed in
NY, PA
In the registry since
2020
Specialties on file
2
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

26 Court St Ste 409
Brooklyn, NY 11242-1134
Phone: (347) 695-8715
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 024706 (NY)
Psychologist Taxonomy 103T00000X · Licence PS020493 (PA)

Record details

NPI number1992322960
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJune 25, 2020
Last updated in NPPESDecember 2, 2025
Certification dateDecember 2, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Accepts Medicare assignment Not indicated

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