DR. WARREN R WALKER PH.D.
NPI 1528286234
Psychologist in Westlake Village, CA

Active since April 20, 2007
699 HAMPSHIRE RD, STE. 215, WESTLAKE VILLAGE, CA 91361(805) 497-3155(805) 371-4875 Get Directions Write a Review

NPPES record last updated: October 9, 2013. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Warren R Walker Ph.d. NPPES

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

DR. WARREN R WALKER PH.D. (NPI 1528286234) is an individual psychologist in Westlake Village, California, licensed in California (PSY4892) and active in the NPI registry since April 2007.

NPPES Registry Identity

NPI1528286234
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameDR. WARREN R WALKERCredential: PH.D.
Location Address699 HAMPSHIRE RD, STE. 215Westlake Village, CA 91361-2379
Mailing Address699 Hampshire Rd, Ste. 215Westlake Village, CA 91361-2379 · (805) 497-3155 · Fax (805) 371-4875
Fax(805) 371-4875
Sole ProprietorYes
Enumeration DateApril 20, 2007
Last NPPES UpdateOctober 9, 2013
NPI 1528286234 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 CA · PSY4892
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.
699 HAMPSHIRE RD, Westlake Village, CA 91361

Other Identifiers 1

Medicare UPIN202937559CA

Other Providers at the Same Location NPPES 10

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

Marriage & Family Therapist
699 HAMPSHIRE RD, SUITE 215
WESTLAKE VILLAGE, CA 91361
Chiropractor
699 HAMPSHIRE RD, #109
WESTLAKE VILLAGE, CA 91361
Marriage & Family Therapist
699 HAMPSHIRE RD, 108
WESTLAKE VILLAGE, CA 91361
Psychologist
699 HAMPSHIRE RD, STE 215
WESTLAKE VILLAGE, CA 91361
Marriage & Family Therapist
699 HAMPSHIRE RD, SUITE 215
WESTLAKE VILLAGE, CA 91361
Marriage & Family Therapist
699 HAMPSHIRE RD, SUITE 215
WESTLAKE VILLAGE, CA 91361
Marriage & Family Therapist
699 HAMPSHIRE RD, SUITE 210
WESTLAKE VILLAGE, CA 91361
Dentist
699 HAMPSHIRE RD, SUITE #209
WESTLAKE VILLAGE, CA 91361

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 Warren Walker's NPI number?

The NPI number for Warren Walker is 1528286234. It was assigned to this individual provider in the NPPES registry on April 20, 2007.

Where is Warren Walker located?

Warren Walker practices at 699 Hampshire Rd Ste. 215, Westlake Village, CA 91361. The listed phone number is (805) 497-3155.

What is Warren Walker'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 Warren Walker was last updated on October 9, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.