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

Individual provider Clinical Psychologist · NPI 1083732564

Dr. John F Duffy, PHD is a Clinical Psychologist in Pittsburgh, Pennsylvania. Practices as a sole proprietor. Licensed in Pennsylvania.

Licensed in
PA
In the registry since
2007
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

615 Washington Rd Ste 507
Pittsburgh, PA 15228-1929
Phone: (412) 969-5228
Fax: (412) 343-5670
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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 PS018944 (PA)

Record details

NPI number1083732564
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMarch 26, 2007
Last updated in NPPESJanuary 11, 2020
Certification dateJanuary 11, 2020

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