DR. STEPHEN JAMES LALLY PH.D., ABPP
NPI 1306987045
Psychologist in Arlington, VA

Active since February 08, 2007
1655 FORT MYER DR, SUITE 700, ARLINGTON, VA 22209(703) 527-1111 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Stephen James Lally Ph.d., Abpp NPPES

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

DR. STEPHEN JAMES LALLY PH.D., ABPP (NPI 1306987045) is an individual psychologist in Arlington, Virginia, licensed in North Carolina (1540) and active in the NPI registry since February 2007.

NPPES Registry Identity

NPI1306987045
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameDR. STEPHEN JAMES LALLYCredential: PH.D., ABPP
Location Address1655 FORT MYER DR, SUITE 700Arlington, VA 22209-3113
Mailing AddressPo Box 2501Alexandria, VA 22301-0501 · (703) 527-1111
Sole ProprietorYes
Enumeration DateFebruary 8, 2007
Last NPPES UpdateSeptember 11, 2025
NPI 1306987045 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
Licenses Licensed in NC · 1540 Licensed in DC · 1532 Licensed in MD · 2529
Definition
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 adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License 2182 (VA)
1655 FORT MYER DR, Arlington, VA 22209

Other Providers at the Same Location NPPES 14

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

Psychologist (Clinical)
1655 FORT MYER DR, SUITE # 350
ARLINGTON, VA 22209
Psychologist (Clinical)
1655 FORT MYER DR, SUITE # 350
ARLINGTON, VA 22209
Psychologist (Clinical)
1655 FORT MYER DR, STE. 700
ARLINGTON, VA 22209
Psychologist (Clinical)
1655 FORT MYER DR, 820
ARLINGTON, VA 22209
Psychologist (Clinical)
1655 FORT MYER DR
ARLINGTON, VA 22209
Counselor (Mental Health)
1655 FORT MYER DR, SUITE 350
ARLINGTON, VA 22209
Social Worker
1655 FORT MYER DR
ARLINGTON, VA 22209
Physical Therapist
1655 FORT MYER DR, 736
ARLINGTON, VA 22209

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 Stephen Lally's NPI number?

The NPI number for Stephen Lally is 1306987045. It was assigned to this individual provider in the NPPES registry on February 8, 2007.

Where is Stephen Lally located?

Stephen Lally practices at 1655 Fort Myer Dr Suite 700, Arlington, VA 22209. The listed phone number is (703) 527-1111.

What is Stephen Lally's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

When was this NPI record last updated?

The NPPES record for Stephen Lally was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.