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

Individual provider Counseling Psychologist · NPI 1982836508

Dr. Gretchen Mathieu, PHD is a Counseling Psychologist in Philadelphia, Pennsylvania. Practices as a sole proprietor. Licensed in Pennsylvania.

Licensed in
PA
In the registry since
2009
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

3900 City Line Ave Ste 1207
Philadelphia, PA 19131-2908
Phone: (215) 878-3052
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Counseling Psychologist (primary) Taxonomy 103TC1900X
School Psychologist Taxonomy 103TS0200X · Licence 84-019960 (PA)

Record details

NPI number1982836508
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedAugust 15, 2009
Last updated in NPPESAugust 20, 2009

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