LifeSpan Counseling and Psychological Services, LLP

Staff Psychologists and Clinical Therapists

Each therapist is well trained to work with the general population and each brings unique strengths and areas of specialization which helps us serve the many unique needs of our clients.

Orson Morrison, PsyD, Clinical Psychologist

Dr. Morrison is co-owner of LifeSpan Counseling and Psychological Services. Dr. Morrison is a Licensed Clinical Psychologist in Illinois. He obtained his Doctoral Degree at the Chicago School of Professional Psychology and a Master’s Degree in Counseling from Niagara University. In addition to his Oak Park practice, he works as Vice President of Clinical Services for Lawrence Hall Youth Services and teaches at the Chicago School of Professional Psychology. He previously held positions as Clinical Director of Hartgrove Hospital’s outpatient psychiatric clinic and Director of Psychology Training at Riveredge Hospital. Dr. Morrison's clinical interests include working with adolescents, adults, and couples. He has developed specializations in treating mood disorders, strengthening couples’ relationships, multi-cultural psychology, LGBT families, trauma, and psychological testing (ADHD, IQ, Personality, and Career Evaluations). Visit Dr. Morrison's Psychology Today Profile.

Keri Morrison, LCSW, Licensed Clinical Social Worker 

Keri Morrison is co-owner of LifeSpan Counseling and Psychological Services. Keri is a Licensed Clinical Social Worker in Illinois. She earned her Master’s Degree from Loyola University in Chicago, and earned a Bachelor’s Degree from Illinois State University. Keri received extensive training as a child and adolescent therapist at the University of Chicago Hospital Child and Adolescent Psychiatric Clinic and the DePaul University Community Mental Health Center where she provided outpatient mental health services to children, adolescents, and families. Keri has also worked in the areas of child welfare, crisis triage and intervention, partial and inpatient hospitalization programs. Keri works with young children, adolescents, adults, and families. She has developed specializations in treating anxiety and mood disorders, ADHD, parent training, and autism spectrum disorders.  Visit Keri Morrison's Psychology Today Profile.

Kirsten A. Tesnar, PsyD, Clinical Psychologist

Dr. Tesnar is a Licensed Clinical Psychologist in Illinois. She obtained both her Doctoral and Master’s Degrees in Clinical Psychology from the Illinois School of Professional Psychology, Argosy University. In addition to practicing in Oak Park, Dr. Tesnar works as a clinical therapist at Arabella House, a group home for women in recovery from eating disorders, affiliated with Linden Oaks Hospital at Edward Hospital in Naperville.  She specializes in the treatment of eating disorders and accompanying issues such as depression, anxiety, trauma, and self-injury. Her clinical interests also include experiential group therapy, attachment issues, women’s identity development, and psychological testing (Cognitive, Personality, and Career evaluations). Dr. Tesnar has extensive experience treating adolescents and their families, adults, and conducting group therapy. Visit Dr. Tesnar's Psychology Today Profile.

Thomas C. Anderson, PhD, LCPC, Clinical Psychotherapist

Dr. Anderson is a clinical psychotherapist at LifeSpan Counseling and Psychological Services and a Licensed Clinical Professional Counselor in the state of Illinois.  He obtained a Doctoral Degree in Counseling Psychology from Arizona State University, a Masters Degree in Counseling from Indiana University and completed training in Divorce and Family mediation from Northwestern University.  Dr. Anderson has previously held positions at the Carson Center for Adults and Families in Massachusetts and the Dorothy B. Mitchell Counseling Center for Adults and families in Arizona.  Dr. Anderson works with adolescents, adults, and couples, and has clinical specializations in substance abuse (assessment and counseling), anger-management, depression, psychological testing (Cognitive, Personality, Diagnostic and Career evaluations), multi-cultural psychology, LGBT families, mindfulness training, divorce and family mediation.  Visit Dr. Anderson's Psychology Today Profile.