Individual provider · Type 1 NPI

Stephen Marshall, PhD

Psychologist · Arlington, MA

NPI number 1235651290 Active

Practice location

226 Massachusetts Ave Ste 2A
Arlington, MA 02474-8449

Call (617) 977-4770 Map

Mailing address

P.o. Box 1285
East Arlington, MA 02474-0021

Other practice locations

  • 22 Mill St Ste 108, Arlington, MA 02476-4738 · (617) 855-3519

Specialties and licenses

TaxonomyCodeLicense
Cognitive & Behavioral Psychologist 103TB0200XNone listed
Clinical Psychologist 103TC0700X11006 (MA)
Psychologist Primary 103T00000XNone listed

Psychologist: A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustmen…

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About NPI 1235651290

Stephen Marshall, PhD's National Provider Identifier is 1235651290, issued on Jul 12, 2017. The primary taxonomy on file is Psychologist (103T00000X), and the practice location is in Arlington, MA. The record was last updated on Sep 28, 2026.