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DR. GLENN PHILLIP HORWITZ PH.D.
NPI 1437335734
Psychologist - Clinical in Fairfax, VA

Active since January 16, 2008
9518C LEE HWY, FAIRFAX, VA 22031(571) 438-2992 Get Directions Write a Review

NPPES record last updated: February 6, 2019. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Glenn Phillip Horwitz Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GLENN PHILLIP HORWITZ PH.D. (NPI 1437335734) is an individual clinical provider in Fairfax, Virginia, licensed in Virginia (0810003784) and active in the NPI registry since January 2008. He maintains 2 additional practice locations.

NPPES Registry Identity

NPI1437335734
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameDR. GLENN PHILLIP HORWITZCredential: PH.D.
Location Address9518C LEE HWYFairfax, VA 22031
Mailing Address9518c Lee HwyFairfax, VA 22031-2303 · (571) 438-2992
Phone(571) 438-2992
Sole ProprietorYes
Enumeration DateJanuary 16, 2008
Last NPPES UpdateFebruary 6, 2019
✔ NPI 1437335734 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in VA · 0810003784
Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

Also ListedPsychologist · Clinical Child & AdolescentTaxonomy 103TC2200X · License 0810003784 (VA)
Also ListedPsychologist · ForensicTaxonomy 103TF0200X · License 0810003784 (VA)
Also ListedPsychologist · PsychoanalysisTaxonomy 103TP0814X · License 0810003784 (VA)
Also ListedPsychologist · SchoolTaxonomy 103TS0200X · License 0810003784 (VA)
9518C LEE HWY, Fairfax, VA 22031
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Secondary Practice Locations 2

Location 19518C Lee HwyFairfax, VA 22031 · Phone (571) 438-2992
Location 218235 Foundry RdPurcellville, VA 20132-4077 · Phone (571) 438-2992

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. CHERYL ANN HUNSBERGER LCSW
Social Worker (Clinical)
9518C LEE HWY
FAIRFAX, VA 22031
Fairfax County (703) 273-6800

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Glenn Horwitz's NPI number?

The NPI number for Glenn Horwitz is 1437335734. It was assigned to this individual provider in the NPPES registry on January 16, 2008.

Where is Glenn Horwitz located?

Glenn Horwitz practices at 9518C Lee Hwy, Fairfax, VA 22031. The listed phone number is (571) 438-2992.

What is Glenn Horwitz's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Glenn Horwitz was last updated on February 6, 2019. NPI Profile syncs with the weekly NPPES data releases published by CMS.