Dr. Osei is a Board Certified Clinical Psychologist (ABPP) and holds an active Georgia Psychologist License (# PSY003736). After graduating summa cum laude with degrees in psychology, english and biology from the University of Massachusetts, Dr. Johnson Osei completed her M.A. and Psy.D. in Clinical Psychology at the California School of Professional Psychology. She has worked in a number of diverse treatment settings, with clients from all walks of life. From homeless veterans to public figures, Dr. Osei has assisted clients in shaping the next stages of their lives while coping with complex mental and emotional issues. ​Dr. Osei's resume includes work in adolescent treatment centers, correctional facilities, substance-abuse treatment, community mental health facilities, sex-offender treatment, crisis services and in-patient settings. Her clients have included those with dual-diagnoses, severe and persistent mental health disorders, co-occurring legal and social issues, substance abuse, and victims of trauma and abuse. In these various settings her primary responsibilities have included providing individual therapy, group therapy, assessment, treatment planning, crisis intervention, family therapy, and couples counseling.