While the SMART Initiative is comprised of a dedicated team of interdisciplinary professionals, official SMART staff are housed at the UT Institute for Public Service.


Jennifer Tourville, DNP : Executive Director, SMART Initiative

Jennifer Tourville, DNP

Executive Director, SMART Initiative

1610 University Ave, Knoxville, TN

Dr. Jennifer Tourville is an East Tennessee native. She holds a Doctor of Nursing Practice degree from Vanderbilt University and continues to practice as a nurse practitioner. Her previous role with UT was as faculty with the College of Nursing where she taught newborn and pediatric courses and mentored student research related to neonatal opioid withdrawal syndrome. Dr. Tourville also co-directs a Rural Communities Opioid Response Program grant funded through the Health Resources and Services Administration, which provides various substance use disorder services to rural East Tennessee communities. She also serves on several university and community task forces.

Jeremy Kourvelas : SMART Substance Use Program Coordinator

Jeremy Kourvelas

SMART Substance Use Program Coordinator

1610 University Avenue, Knoxville, TN 37921

Though he grew up in Memphis, Jeremy Kourvelas has spent over a decade in East Tennessee. After graduating from the University of Tennessee with a bachelor’s in psychology, he spent more than four years in multiple emergency departments in Knox, Roane, Blount and Claiborne counties as a medical scribe. He returned to UT for a master’s in public health and certificate in health policy and became SMART’s first employee in 2022. He also works for the Prevention Alliance of Tennessee, which seeks to advance prevention efforts pertaining to substance, alcohol and tobacco use disorders. 

Channie Cretsinger : Program Associate

Channie Cretsinger

Program Associate

1610 University Avenue, Knoxville, TN 37921

Channie Cretsinger is an East Tennessee native and a University of Tennessee alumna. She first joined SMART as a graduate intern while completing her Master's in Public Health with a concentration in Health Policy and Management. Upon her graduation, Channie transitioned into SMART's program associate. Her previous work includes graduate research on the Rape Prevention and Education Evaluation team, and she was a member of the Department of Public Health's Diversity, Equity, and Inclusion Committee. In her position, Channie hopes to assist SMART in improving the health and development of underserved individuals and communities experiencing substance misuse and addiction.

Courtney Collier : Substance Use Response Consultant, West TN

Courtney Collier

Substance Use Response Consultant, West TN

(731) 426-5688 | 605 Airways Blvd., Suite 109, Jackson, TN 38301

Courtney Collier is a native of St. Louis, MO, and currently resides in the Jackson, TN, area. His educational accomplishments consist of a Bachelor of Science in Organizational Leadership; a master’s in business administration; and is currently completing the Master of Clinical Mental Health Counseling program at Freed-Hardeman University. He is a Certified Peer Recovery Support (CPRS) and received the National Board for Certified Counselors (NBCC) 2023 Minority Fellowship in Addictions Counseling. Courtney has over 10 years of experience working in the clinical field of addictions and is a Licensed Alcohol and Drug Abuse Counselor (LADAC II), Certified Alcohol Drug Counselor (CADC I), Qualified Substance Abuse Professional (SAP) and has plans to be a Licensed Professional Counselor – Mental Health Service Provider (LPC-MHSP). As a substance use response consultant, Courtney is motivated to partner with communities across West Tennessee to help break through the barriers and stigma associated with populations experiencing substance use recovery.

Trevor Henderson : Substance Use Consultant, Middle TN

Trevor Henderson

Substance Use Consultant, Middle TN

193 Polk Avenue, Suite C, Nashville, TN 37210

Trevor Henderson grew up in Northern Ireland and has been living in Tennessee for the past twenty years. He has a broad background from working in construction, outdoor education, peace and reconciliation programs, unemployment issues, supporting victims of violent crime, HIV and several other public health issues. Most recently he has been working on the opioid/overdose crisis as director of the Metro Nashville Public Health Department Overdose Response Program and as a public health analyst with the CDC Foundation Overdose Response Program (ORS). His work with the ORS program across Tennessee has involved collaboration with multiple state and local agencies and coalitions. He has had the opportunity to develop an extensive network of relationships and access to expertise on opioid/overdose response strategies.

Sarah McCall : Substance Use Consultant, East TN

Sarah McCall

Substance Use Consultant, East TN

1610 University Avenue, Knoxville, TN 37921

While her earliest years were spent in Nashville, Sarah McCall was raised in northwest Arkansas. She returned to Tennessee in 2021 and lives in Knoxville. Sarah has a Master of Public Health with a concentration in behavioral health and is a Certified Health Education Specialist. For over a decade, Sarah supported community mental health and holistic services, harm reduction outreach, and prevention programming. Prior to becoming a substance use response consultant with the UT IPS SMART Initiative, Sarah led prevention, harm reduction and recovery initiatives and served on task forces as the alcohol and other drug coordinator at the University of Tennessee, Knoxville. As a substance use response consultant, Sarah is excited to provide cities and counties across East Tennessee with technical assistance to leverage opioid settlement funds and improve local substance use disorder continuums of care in meaningful, effective and sustainable ways.

Ellen Oakes : Graduate Intern

Ellen Oakes

Graduate Intern

1610 University Avenue, Knoxville, TN 37921

Ellen is a first-year graduate student at the University of Tennessee, pursuing a degree in Health Policy & Management. In addition to joining SMART as a graduate intern, she works in the Healthy Families Lab studying the impact of relationships on diabetic foot ulcer patients as well as the development of an educational program aimed at patients with gestational diabetes. She is also currently employed as a graduate research assistant, focusing on the health outcomes of individuals with end-stage kidney disease in rural Appalachia. After she completes her graduate education, she hopes to work on providing quality care to underserved populations.