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

Individual provider Clinical Child & Adolescent Psychologist · NPI 1437335734

Dr. Glenn Phillip Horwitz, PHD is a Clinical Child & Adolescent Psychologist in Fairfax, Virginia. Practices as a sole proprietor and works from 3 locations. Licensed in Virginia.

Licensed in
VA
In the registry since
2008
Specialties on file
5
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

9518C Lee Hwy
Fairfax, VA 22031
Phone: (571) 438-2992
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 9518c Lee Hwy, Fairfax, VA 22031 — (571) 438-2992
  • 18235 Foundry Rd, Purcellville, VA 20132-4077 — (571) 438-2992

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 0810003784 (VA)
Clinical Child & Adolescent Psychologist Taxonomy 103TC2200X · Licence 0810003784 (VA)
Forensic Psychologist Taxonomy 103TF0200X · Licence 0810003784 (VA)
Psychoanalysis Psychologist Taxonomy 103TP0814X · Licence 0810003784 (VA)
School Psychologist Taxonomy 103TS0200X · Licence 0810003784 (VA)

Record details

NPI number1437335734
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedJanuary 16, 2008
Last updated in NPPESFebruary 6, 2019

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