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

Mary Donnelly, PHD

Individual provider Psychologist · NPI 1932223393

Mary Donnelly, PHD is a Psychologist in Kensington, Maryland. Licensed in District of Columbia, Maryland and Virginia. Registered with an NPI since 2007.

Licensed in
DC, MD, VA
In the registry since
2007
Specialties on file
3
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

3800 Denfeld Ave
Kensington, MD 20895-1603
Phone: (301) 933-8146
Fax: (202) 508-1795
Show map & directions

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

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 1829 (DC)
Psychologist Taxonomy 103T00000X · Licence 1862 (MD)
Clinical Psychologist Taxonomy 103TC0700X · Licence 1854 (VA)

Record details

NPI number1932223393
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedMarch 19, 2007
Last updated in NPPESSeptember 11, 2025
Mailing address3800 Denfeld Ave, Kensington, MD 20895-1603

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