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

Dr. Dennis J. O'Hara, PHD, ABPP

Individual provider Clinical Psychologist · NPI 1952420481

Dr. Dennis J. O'Hara, PHD, ABPP is a Clinical Psychologist in Exton, 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.

See every abbreviation used in this directory →

Practice location Address checks out

675 Exton Cmns
Exton, PA 19341-2446
Phone: (610) 269-3037
Fax: (610) 280-3373
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PS003734L (PA)

Record details

NPI number1952420481
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD , ABPP
Sole proprietorYes
NPI enumeratedMarch 28, 2007
Last updated in NPPESMay 8, 2024
Certification dateNovember 6, 2023

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