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Meet Our Therapists

Illinois Valley Counseling Services (IVCS) is unlike any other psychotherapy practice in LaSalle County. We provide services to LaSalle County and the surrounding area. Our therapists specialize in meeting the needs of infants, children, adolescents, adults and geriatric patients. We have therapists who treat both mental health and substance use issues. Additionally, IVCS can provide individual, couples, and family therapy. Our therapists will develop an individualized treatment plan with you. IVCS also maintains relationships in the community, and with your permission, can work with organizations such as schools, probation, attorneys, physicians, and other agencies to help you reach your goals. We believe anyone can benefit from counseling. Many of our clients are successful individuals, who know that everyone has the potential to grow—to change.

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Our Staff

Get to know more about our therapists at Illinois Valley Counseling Services (IVCS). We service clients in Ottawa, Mendota and surrounding areas.

Lori Cornelius, NP

Lori Cornelius is a Board -Certified Nurse Practitioner who has practiced in several areas of medicine over her 25 years working in the healthcare industry. She obtained her master’s degree from Olivet Nazarene University. She has worked in family medicine, urgent care immediate care, and urology. She has a holistic view of medicine with a special interest in the emotional health of her patients. She has discovered over the several years of caring for patients that their emotional health is associated with their physical health, and a poor emotional state can prolong or prevent physical healing. She has a special interest in treating adults with anxiety and depression.

Rebecca Amble, LCSW

Rebecca is a Licensed Clinical Social Worker who is passionate about working with individuals, couples and family in coping with life’s difficulties. Rebecca strives to instill positive relationships to build trust, strengthen self-esteem, and to promote emotional healing. Prior to Rebecca’s experience in private practice, she worked as a Child Welfare Worker for the State of Illinois. She also has experience in assisting students in the public school system that deal with social and emotional challenges, grief counseling and ADHD.

Our Staff

Rebecca has been trained in the following treatment modalities:

                  • Cognitive Behavioral Therapy (CBT)
                  • Victim Sensitive Interviewing
                  • The Social Thinking Model
                  • Dialectic Behavioral Therapy (DBT)

Rebecca earned her Bachelor’s Degree in Social Work from Southern Illinois University-Carbondale. She earned her Master's Degree in Social Work from Dominican University in River Forrest. Rebecca is also currently attending Aurora University working on her Doctorate in Clinical Social Work. Lastly, Rebecca is a member of the National Association of Social Workers.

Bruce Dannenberger, LCSW

Bruce is a Licensed Clinical Social Worker. He has 42 years of professional experience. Bruce has worked for 20 years at a local behavioral health agency with 3 years as Outpatient Supervisor and 15 years as Clinical Director. He had a private practice for the past 19 years specializing in Mood Disorders with particular emphasis on Depression, Anxiety and Bipolar Disorder.

Bruce has an eclectic approach and also utilizes Cognitive Behavioral Therapy to treat conditions, when appropriate.

Bruce received his Master's Degree from University of Illinois-Chicago.

Vaughn Klaassen, LCPC

Vaughn has been a licensed clinical professional counselor (LCPC) for over 25 years. He 

has treated both inpatient and outpatient clients, and he is experienced in treating 

Depression, Anxiety, Panic, Post Traumatic Stress Disorder, Obsessive- Compulsive Disorder, Bipolar, and Thought disorders. Vaughn works with adolescents and adults, and he uses Cognitive Behavioral Therapy, Acceptance and Commitment Therapy, Gestalt Therapy, and Family Systems Therapy in his work.

Vaughn received his Masters in Counseling Psychology from Trinity International Divinity School.

Dawn McCollom, LCSW

Dawn is a Licensed Clinical Social Worker (LCSW). She has over a decade of experience providing counseling services. Dawn has been in private practice setting for the past 6 years. Prior to that, she worked in a community agency providing counseling and case management services. Dawn has experience in working with clients of all ages. She provides individual, family and couples treatments. Dawn is experienced in working with issues of Trauma, Anxiety, Depression, Mood Disorders, Stress Management, Anger Management, Relationship Issues, School Issues, Peer Pressure, Self-Esteem Building, Sexual Abuse, Child Abuse and Neglect, Partner Abuse, and Family Discourse. Dawn will work with the client(s) to determine an individualized approach designed to best meet their needs.

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Dawn has extensive training in and utilizes these evidenced based approaches:

                      • Cognitive Behavioral Therapy
                      • Motivational Interviewing
                      • Family Systems Theory
                      • Solution-Focused Therapy

Dawn received her Bachelor's Degree from Illinois State University in Social Work and her Master's in Social Work from Washington University in St. Louis.

Wendy Navarro, LCSW

Wendy is a Licensed Clinical Social Worker. She has many years of experience in the Behavioral Health field. Recently, Wendy served as the Administrative Director of Choices Behavioral Health at OSF Saint Elizabeth Medical Center. Prior to that role, Wendy was employed as an addictions therapist at the local community mental health center. Wendy is a member of the National Association of Social Workers and the Illinois Guardianship and Advocacy Commission-Human Rights Authority.

Wendy specializes in individual therapy for mood disorders, anxiety disorders, insomnia and life-role transitions.

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Wendy has training in the following evidence-based treatment modalities:

                    • Cognitive Behavioral Therapy-Insomnia
                    • Dialectical Behavioral Therapy
                    • Interpersonal Psychotherapy

Wendy holds a Bachelor of Science in Education from Northern Illinois University and a Master of Social Work from the University of Illinois.

Cindy Slagle – 

Operations Manager

Cindy has worked as a mental health professional at a community mental health agency for many years. She joins IVCS to manage daily functions, marketing, human resources, community relations and much more.

To contact her for any issues or complaints, please use the "Home/Contact" page above.

Shawn Slagle, LCSW, ACSW, QCSW 

Shawn is a Licensed Clinical Social Worker. He has many years of experience working with adolescents, adults, couples, and families. In conjunction with being the Owner of IVCS, Shawn is employed by the Department of Veteran Affairs, working with the men and women who have courageously served our country.

Shawn has extensive training in the following evidenced based treatment modalities:

  • Prolonged Exposure Therapy for the treatment of PTSD
  • Cognitive Processing Therapy for the treatment of PTSD
  • Interpersonal Psychotherapy for the treatment of Depression.
  • Cognitive Behavioral Therapy for the Treatment of Depression

    and Anxiety

Shawn holds a Bachelor of Social Work from University of St Francis and Master of Social Work from Aurora University.

Kara Redshaw, LCSW

Kara is a Licensed Clinical Social Worker.  She has experience working with children, adolescents, adults and families in multiple settings.  Previously, Kara was employed as a hospice social worker and has extensive experience with grief and loss.  She incorporates a variety of evidenced based approaches to best fit the individual including Cognitive Behavioral Therapy, Acceptance and Commitment Therapy, and Play Therapy.

Kara earned a Bachelor of Social Work from Illinois State University and a Master of Social Work from Aurora University.  Kara is a member of the National Association of Social Workers.

Teresa MacDavitt, LCPC

Teresa MacDavitt is a licensed clinical professional counselor. (LCPC)  She has worked as a school counselor in the public school system for 15 years.  She is experienced in serving youths and their families challenged with conflict, depression, anxiety, panic, mood, grief, bipolar, ADHD, self harm, behavioral and emotional disorders.  She is also skilled in helping with stress management, relationship and boundary issues, societal LGTBQ challenges, peer pressure,  and child abuse and neglect.  She acted as trained district social/emotional leader introducing and adopting LGTBQ support education, suicide prevention, mindfulness work, and emotional intelligence and regulation programs.  Teresa will work with clients to determine an individualized approach designed to best help them function and thrive in today's society.

Teresa received her master's degree from Northern Illinois University. 

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Each individual therapeutic experience is tailored to these unique strengths, needs, and goals. Therapeutic treatment modalities include the following, based upon age, as well as client needs, Cognitive Behavioral Therapy, Dialectic Behavioral Therapy Mindfulness, Trauma-Focused Cognitive Behavioral Therapy, and Play Therapy Integrated with Cognitive Behavioral Therapy or Play Therapy Integrated with Trauma-Focused Cognitive Behavioral Therapy.

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