Dr. Marlene Williams , PhD
Psychologist • Sachse, TX
Professional Overview & Biography Verified Profile Summary
Dr. Marlene Williams, PhD is a registered healthcare professional specializing in Psychologist in Sachse, TX. Practice services are available at 4118 BULLWHIP CREEK LN under active NPI credentials.
Practice Location & Contact Primary Location
4118 Bullwhip Creek Ln
Sachse, TX 750484851
Specialty Benchmarks & Practice Insights
Comparative analytics for Psychologist in Sachse, TX
Practicing in Sachse, TX (2266 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
CMS Verified: 2025-08-22NUCC 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 4118 BULLWHIP CREEK LN, SACHSE, TX 750484851 (Tel: 4693430278)
Registered at 4118 BULLWHIP CREEK LN, SACHSE, TX 750484851 (Tel: 8327667218)
NPI status registered as active in NPPES database
Registered at 12810 HILLCREST RD # B123, DALLAS, TX 752301525 (Tel: 2144175328)
Registered at 8110 PARK LN APT 307, DALLAS, TX 752316089 (Tel: 8327667218)
Recorded as MARLENE WILLIAMS, PH.D.
Psychologist
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
4118 Bullwhip Creek Ln
Sachse, TX 750484851
Phone: 8327667218
This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.