Dr. Harriet Singelyn , PsyD
Psychologist • Keller, TX
Professional Overview & Biography Verified Profile Summary
Dr. Harriet Singelyn, PsyD is a registered healthcare professional specializing in Psychologist in Keller, TX. Practice services are available at 1710 KELLER PKWY # 4759 under active NPI credentials.
Practice Location & Contact Primary Location
1710 Keller Pkwy # 4759
Keller, TX 762483749
Specialty Benchmarks & Practice Insights
Comparative analytics for Psychologist in Keller, TX
Practicing in Keller, TX (2266 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
CMS Verified: 2025-11-24NUCC Taxonomy Code: 103T00000X
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.
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 1710 KELLER PKWY # 4759, KELLER, TX 762483749 (Tel: 2102012364)
Registered at 1710 KELLER PKWY # 4759, KELLER, TX 762483749 (Tel: 2102012364)
Registered at 508 DEEP EDDY AVE, AUSTIN, TX 78703 (Tel: 2102012364)
Registered at 539 W COMMERCE ST STE 4160, DALLAS, TX 752081953 (Tel: 2102012364)
Recorded as HARRIET SINGELYN, PSYD
Psychologist (License #39356 in TX)
NPI status registered as active in NPPES database
Registered at 2307 W. 6TH STREET, LOS ANGELES, CA 90057 (Tel: 2133512835)
Registered at 2307 W 6TH ST, LOS ANGELES, CA 900573119
Recorded as HARRIET STARES
Marriage & Family Therapist
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
1710 Keller Pkwy # 4759
Keller, TX 762483749
Phone: 2102012364
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