DR. BARBARA GAY SIDDLE PHD
NPI 1952422131
Psychologist in Columbia, MD

Active since April 03, 2007
8640 GUILFORD RD, SUITE 252, COLUMBIA, MD 21046(410) 312-7250(410) 312-7298 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Barbara Gay Siddle Phd NPPES

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

DR. BARBARA GAY SIDDLE PHD (NPI 1952422131) is an individual psychologist in Columbia, Maryland, licensed in Maryland (1652) and active in the NPI registry since April 2007.

NPPES Registry Identity

NPI1952422131
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. BARBARA GAY SIDDLECredential: PHD
Location Address8640 GUILFORD RD, SUITE 252Columbia, MD 21046-2655
Mailing Address11301 Willow Bottom DrColumbia, MD 21044-1070 · (443) 283-8414
Fax(410) 312-7298
Sole ProprietorYes
Enumeration DateApril 3, 2007
Last NPPES UpdateJuly 8, 2007
NPI 1952422131 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 MD · 1652
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.
8640 GUILFORD RD, Columbia, MD 21046

Other Names 1

Other Name (5)Dr. Barbara Siddle Matheson

Other Identifiers 1

Medicare ID-Type UnspecifiedG857MD

Other Providers at the Same Location NPPES 16

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

Psychiatry & Neurology (Psychiatry)
8640 GUILFORD RD, SUITE 223
COLUMBIA, MD 21046
Dentist (General Practice)
8640 GUILFORD RD, SUITE 221A
COLUMBIA, MD 21046
Pharmacist
8640 GUILFORD RD
COLUMBIA, MD 21046
Dentist (General Practice)
8640 GUILFORD RD, SUITE #221A
COLUMBIA, MD 21046
Clinical Neuropsychologist
8640 GUILFORD RD, SUITE 251
COLUMBIA, MD 21046
Psychologist
8640 GUILFORD RD, SUITE 224
COLUMBIA, MD 21046
Dentist (General Practice)
8640 GUILFORD RD, SUITE 237
COLUMBIA, MD 21046
Pharmacist
8640 GUILFORD RD
COLUMBIA, MD 21046

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 Barbara Siddle's NPI number?

The NPI number for Barbara Siddle is 1952422131. It was assigned to this individual provider in the NPPES registry on April 3, 2007. The provider is also known as Dr. Barbara Siddle Matheson.

Where is Barbara Siddle located?

Barbara Siddle practices at 8640 Guilford Rd Suite 252, Columbia, MD 21046. The listed phone number is (410) 312-7250.

What is Barbara Siddle'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 Barbara Siddle was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.