Dr. Thena Poteat Joins Southern Illinois Associates, LLC 

A New Era in Psychiatry and Treatment-Resistant Depression

Thena Poteat, M.D

Southern Illinois Associates, LLC is pleased to announce the addition of Dr. Thena Poteat to our team of dedicated healthcare professionals. Dr. Poteat brings a wealth of experience and expertise in psychiatry, particularly in the area of treatment-resistant depression. Here’s why this is a significant milestone for our practice and for psychiatric care in the region.

 A Stellar Educational Background

Yale University Department of Psychiatry

  • Post-Graduate Medical Education

Medical University of South Carolina

  • Doctor of Medicine

Washington University

  • Bachelor of Arts, cum laude, and Post-Baccalaureate coursework

Yale Law School

  • Juris Doctorate


Work Experience

Southern Illinois Associates, LLC  (Oct. 2023 to Present)

Wexford Health Sources

  • Psychiatrist (Jan 2019 -Sep 2023)

VA St. Louis Healthcare System

  • Psychiatrist Staff Physician (July 2012 – Jan 2019)

University of Illinois-Chicago, College of Medicine

  • Assistant Clinical Professor (July 2005 – Dec 2012)
  •  Associates in Mental Health in Peoria, July 2004-July 2012.  

Special Focus on Treatment-Resistant Depression

Treatment-resistant depression is a particularly challenging condition that does not respond to standard treatments. Dr. Poteat’s expertise in this area is a significant addition to Southern Illinois Associates, LLC, enhancing our ability to offer specialized care for this debilitating condition.

Legal Background Adds Unique Perspective

Dr. Poteat’s Juris Doctorate from Yale Law School adds a unique perspective to her psychiatric practice, especially in understanding the legal aspects of mental health care.


Awards and Honors

  • Alpha Omega Alpha, Medical  Honor Society
  • Phi Beta Kappa
  • Pi Sigma Alpha, Political Science Honorary
  • National Merit Scholar
  • United States Senate Youth Program

Professional Memberships

  • American Medical Association,
  • American Psychiatric Association,
  • Illinois State Medical Society,
  • Illinois Psychiatric Society,
  • Illinois State Bar Association, and
  • The Missouri Bar

Joining a Team Committed to Excellence

Southern Illinois Associates, LLC is committed to providing the best psychiatric care to our patients. Dr. Poteat’s joining marks a new era in our ability to treat complex psychiatric conditions, including treatment-resistant depression.

We are thrilled to welcome Dr. Thena Poteat to Southern Illinois Associates, LLC. Her extensive experience and focus on treatment-resistant depression will undoubtedly make a significant impact on the quality of care we provide.

For more information or to schedule an appointment, please contact Southern Illinois Associates, LLC in Maryville, IL 62062