Nikki Theiss, LCPC

Nikki Theiss.jpg

Counseling Approach

It is important to me that every client I meet with feels heard, understood, and respected.  I interact with clients with these core values in mind and strive to help clients feel comfortable as they move through therapy with me.  While connecting with a client and helping them feel secure in sessions is a vital part of therapy, I am quite aware that people are coming to counseling to solve problems or seek solutions and are searching for more than empathy and feeling heard.  Clients are looking for real-world solutions to their issues.  I combine an empathetic and solution-focused approach to support clients in meeting their goals in an environment where they feel supported and uplifted. 

I believe that every person, regardless of how they are feeling or functioning, has strengths that can be used and enhanced to solve the problems facing them.  For many people in distress, these strengths can be hard to see or may seem useless or irrelevant.  One of my objectives is to empower individuals to identify and utilize these abilities to build skills and insights that will help them become more balanced, healthy, and happy.  Clients working with me routinely find that by leveraging their innate strengths, they can adapt to situations, solve problems, and cope with difficulty much better and more quickly than if they ignored the foundation within themselves and tried to change everything about them and their lives.  


I am a Licensed Clinical Professional Counselor (LCPC) in the State of Illinois. I have obtained
a Master’s degree in Professional Counseling from McKendree University, and a Bachelor’s
degree in Psychology from Southern Illinois University Edwardsville. Currently, I work in private practice with individuals.

I have past experience providing individual and group therapy in inpatient and outpatient
settings, as well as crisis intervention, and career management services. I have worked
with a variety of populations such as adolescents and adults, LGBTQ, veterans, and
individuals from a variety of cultural backgrounds. I have successfully assisted individuals with many different and overlapping presenting concerns including addiction, anxiety disorders, depression, bipolar, domestic violence/abuse, grief, personality disorders, and schizophrenia. I base my interventions on the needs of each client by utilizing an integrative therapy style that blends Cognitive Behavior Therapy, Motivational Interviewing, Person Centered Therapy, and elements of Rational Emotive Behavior Therapy and Solution Focused Therapy.


Phone: 618-248-2040 x24


Location: Maryville


  • Teens  (16-17)
  • Adults (18+)

Areas of Focus

  • ADHD
  • Addiction
  • Adults
  • Anger
  • Anxiety
  • Attachment Disorder
  • Bipolar Disorder
  • Blended Family
  • Borderline Personality Disorder
  • Codependency
  • Cognitive Behavioral Therapy
  • College Students
  • Confidence / Self - Esteem
  • Depression
  • Obsessive Compulsive Disorder
  • PTSD
  • Panic
  • Phobia
  • Self Harm
  • Stress

Professional Experience

  • Individual, family, and group counseling in an agency and private-practice setting.
  • Career management services in an agency setting to individuals with moderate and severe mental illness.

Education and Credentials

  • L.C.P.C. in Illinois (What's This?)
  • M.A. in Professional Counseling from McKendree University
  • B.S. in Psychology from Southern Illinois University Edwardsville