Dr. David Lewallen , PsyD
Psychologist • West Linn, OR
Professional Overview & Biography Verified Profile Summary
Dr. David Lewallen, PsyD is a registered healthcare professional specializing in Psychologist in West Linn, OR. Practice services are available at 21900 WILLAMETTE DR STE 202 under active NPI credentials.
Practice Location & Contact Primary Location
21900 Willamette Dr Ste 202
West Linn, OR 970683284
Specialty Benchmarks & Practice Insights
Comparative analytics for Psychologist in West Linn, OR
Practicing in West Linn, OR (780 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
CMS Verified: 2025-01-22NUCC 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.
NUCC Taxonomy Code: 101YM0800X
Definition to come...
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Psychologist - Health Service
Licensed Professional Counselor
Psychologist - Health Service
Nurse Practitioner - Psychiatric/Mental Health
Psychiatric-Mental Health Nurse Practitioner (Board Certified)
Counselor - Mental Health
Counselor - Professional
Psychologist - Clinical
Doctor of Psychology (Psy.D.)
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 21900 WILLAMETTE DR STE 202, WEST LINN, OR 970683284 (Tel: 5036530631)
Recorded as DAVID LEWALLEN, PSYD
NPI status registered as active in NPPES database
Registered at 190 SE 8TH AVE # 181, HILLSBORO, OR 971234216 (Tel: 5033527333)
Registered at 190 SE 8TH AVE # 181, HILLSBORO, OR 971234216 (Tel: 5033527333)
Recorded as DAVID LEWALLEN
Counselor
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
190 Se 8th Ave # 181
Hillsboro, OR 971234216
Phone: 5033527333
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