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

Dr. Mary P. Riddle, PHD

Individual provider Clinical Psychologist · NPI 1588840524

Dr. Mary P. Riddle, PHD is a Clinical Psychologist in State College, Pennsylvania. Practices as a sole proprietor. Licensed in Pennsylvania.

Licensed in
PA
In the registry since
2008
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

712 Cornwall Rd
State College, PA 16803-1427
Phone: (212) 643-0939
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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 PS016040 (PA)

Record details

NPI number1588840524
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedJanuary 20, 2008
Last updated in NPPESJanuary 20, 2008

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