Marissa Harris,
Champaign Clinical Director


Marissa Harris has been overseeing Prairie Center’s Inpatient Residential and Residential Reentry Center programs at our downtown Champaign facility as Clinical Director since 2013.

To her work with clients needing residential addiction treatment, Marissa brings nearly 20 years of practice experience focused on treating clients with severe and persistent mental health, substance use, and developmental disorders, including posts at Developmental Services Center, Catholic Charities, and Community Elements.

She supervised group homes for seven years and is very familiar with 24-hour operations and has direct clinical experience with varied populations including LGBTQ, adolescents involved in the juvenile justice system, adults transitioning from correctional institutions, NGRI clients (not guilty by reason of insanity), and patients with significant mental health needs. 

What I love the most about working at Prairie Center is being a part of those quantum change insights. This can involve a shift in awareness and the realization of a new life. It can be as simple as a client looking at themselves positively, realizing they are capable of change.

Marissa is a licensed social work practitioner and comes highly trained in over a dozen relevant areas and research-based treatments, including:

  • Advanced clinical training in Motivational Interviewing Train the Trainer from the Motivational Interviewing Network of Trainers
  • Certification in Motivational Interviewing Treatment Integrity (MITI) coding assessment and measuring the fidelity of Motivational Interviewing.
  • Clinical Training in SBIRT (Screening, Brief Intervention, and Referral to Treatment) Assessments and SBIRT Coding
  • Certified Full Therapist in Adolescent Community Reinforcement Approach
  • Certification in Bessel Van Der Kolk’s Traumatic Stress Studies from the Trauma Center at Justice Resource Institute
  • Certified GAIN assessor (Global Assessment of Individual Needs)
  • The Seven Challenges®
  • Trauma Focused CBT
  • Mindfulness Based Relapse Prevention (MBRP)

“What I love most about working at Prairie Center is being a part of those quantum change insights,” she says of her work. “This can involve a shift in awareness and the realization of a new life. It can be as simple as a client looking at themselves positively, realizing they are capable of change.”

Marissa earned both her Bachelors in Science in Psychology and Masters in Social Work from the University of Illinois at Urbana-Champaign.