Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. BONNIE L STEWART PH.D.
NPI 1669431987
Psychologist in Lafayette Hill, PA

Active since March 23, 2006
462 GERMANTOWN PIKE, LAFAYETTE HILL, PA 19444(610) 832-7771(610) 832-7771 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Dr. Bonnie L Stewart Ph.d. NPPES

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

DR. BONNIE L STEWART PH.D. (NPI 1669431987) is an individual psychologist in Lafayette Hill, Pennsylvania, licensed in Pennsylvania (PS006957L) and active in the NPI registry since March 2006.

NPPES Registry Identity

NPI1669431987
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. BONNIE L STEWARTCredential: PH.D.
Location Address462 GERMANTOWN PIKELafayette Hill, PA 19444-1818
Mailing Address462 Germantown PikeLafayette Hill, PA 19444-1818 · (610) 832-7771 · Fax (610) 832-7771
Fax(610) 832-7771
Sole ProprietorNo
Enumeration DateMarch 23, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1669431987 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License Licensed in PA · PS006957L
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.

462 GERMANTOWN PIKE, Lafayette Hill, PA 19444

Other Identifiers 3

Other1108229Cigna
Other215928PA · Managed Health Network
Other0787621000PA · Magellan

Other Providers at the Same Location NPPES 3

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

Social Worker (Clinical)
462 GERMANTOWN PIKE
LAFAYETTE HILL, PA 19444
Counselor (Professional)
462 GERMANTOWN PIKE
LAFAYETTE HILL, PA 19444
Social Worker (Clinical)
462 GERMANTOWN PIKE
LAFAYETTE HILL, PA 19444

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 Bonnie Stewart's NPI number?

The NPI number for Bonnie Stewart is 1669431987. It was assigned to this individual provider in the NPPES registry on March 23, 2006.

Where is Bonnie Stewart located?

Bonnie Stewart practices at 462 Germantown Pike, Lafayette Hill, PA 19444. The listed phone number is (610) 832-7771.

What is Bonnie Stewart'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 Bonnie Stewart was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.