Meet Our Team


Mark Sawyer

Chief Executive Officer

Mark brings to Oxford Treatment Center a strong business background and experience in driving clinical excellence in addiction treatment. His prior experience in healthcare includes serving as controller, CFO, director of operations and CEO at Twelve Oaks Recovery Center in Navarre, Fla. Under his leadership, the center made strides in client satisfaction, employee engagement and financial metrics, earning Acadia’s first Recovery Division Clinical Excellence Award in 2016. Mark is a native of Anniston, Ala. He holds a business administration degree in accounting and tax from Auburn University.

Mark Stovall, CAT, CMHT

Chief Operating Officer

Mark oversees all clinical aspects of Oxford Treatment Center’s programs. He has nearly 20 years experience in the coordination, development and management of inpatient chemical dependency and behavioral health programs. He is the former director of the Bureau of Alcohol and Drug Services for the Mississippi Department of Mental Health (DMH), having also led the department’s divisions of Adolescent Services, Clinical Services and Treatment Services. His efforts at DMH included advancing the use of evidence-based programs in community treatment centers across Mississippi.

Mark holds a Master of Education degree in Community Counseling from Delta State University. He devoted the early part of his career to supporting mental health and addiction recovery in the Mississippi Delta. A Certified Addictions Therapist and Certified Mental Health Therapist, he has presented extensively on dual-diagnosis treatment and on treatment planning at state and regional conferences. He has also served as director of the Mississippi School for Addiction Professionals.

Jerri Avery, LCAT, Ph.D.

Clinical Director

Dr. Avery has over 24 years of experience in federal grant-writing and implementation, social service program management, workforce development, social science research, and governmental and nonprofit leadership. She holds a Ph.D. in public policy and administration from Jackson State University. She has directed programs and conducted research on mental health promotion, drug prevention, and drug treatment initiatives. Dr. Avery previously served as Director of the Mississippi Department of Mental Health’s Bureau of Alcohol and Drug Services.

Barbara Cox, MS, LSW, MAC, SAP

Director of Tupelo Outpatient Center

Barbara oversees Clinical Services at the Tupelo outpatient office. She is a Licensed Social Worker and Master Addiction Counselor. As a Substance Abuse Professional, she is certified to perform DOT assessments. She holds a Bachelor’s degree in Social Work from Union University and a Masters degree in Counseling from the University of Kentucky. Prior to joining the staff of Oxford Treatment Center, Barbara served clients through the Mississippi Vocational Rehabilitation Services, working with the disabled and individuals in recovery from alcohol and drug addiction. She has served on the Advisory Board for Ability Works in Oxford, Mississippi and is a member of the National Association of Social Workers (NASW).

Amy Woodward, BA, CADC

Clinical Consultant

A former primary therapist at Oxford Treatment Center, Amy works with the business office and clinical team as a liaison to help families and patients navigate Oxford Treatment Center’s 90-day continuum of care. Her focus includes helping families ease the transition into next steps in treatment. Amy holds a bachelor of arts degree in psychology from the University of Mississippi and is a Certified Alcohol and Drug Counselor through the Mississippi Association of Addiction Professionals. Prior to joining Oxford Treatment Center, she worked for eight years in the field of adult residential addiction treatment, serving mostly indigent and pregnant populations in the Mississippi Delta. She has experience and specialized training in crisis intervention, suicide prevention and mental health first aid for adults and adolescents. She also has experience working with the judicial system and Drug Court as a consulting therapist, as well as in conducting outreach/aftercare focus groups for individuals who have recently completed residential treatment.

Barry Doughty, ICADC-I, SAP, CPI-Instructor

Direct Care Coordinator

Barry supervises residential treatment programs for adults ages 26 and older. His experience in the addiction field for more than 10 years includes working as an aftercare/outreach counselor with direct services, including group and individual counseling as well as teaching addiction education. An Internationally Certified Alcohol and Drug Counselor, he specializes in motivational interviewing and works to facilitate change that is patient-centered. He serves as a Substance Abuse Professional (SAP) for the U.S. Department of Transportation.

Reggie Watkins, MLAP, ADC, ICADC

Young Adult Program Coordinator

A veteran of substance abuse treatment in the state of Alabama, Reggie brings more than 25 years’ experience in helping people overcome drug and alcohol addiction. At Oxford Treatment Center, he leads a team of clinicians dedicated to the young adult patient population, ages 18-25. Reggie spent most of his career with Bradford Health Services in north Alabama. He entered the treatment field in 1990 and has worked with patients in both inpatient and outpatient treatment settings. His experience has included leading aftercare for families of people in early recovery, as well as developing and marketing treatment programs for adolescents. Watkins is certified as a Master’s Level Addiction Professional, Alcohol & Drug Counselor and Internationally Certified Alcohol & Drug Counselor. He holds a master’s degree in psychology.

Tori Ossenheimer, CTRS

Director of Experiential Services

Tori uses outdoor and recreation experiences as a therapy tool that helps patients overcome self-destructive habits and build a new sense of self to carry them into recovery. She joined Oxford Treatment Center from Community Health and Wellness LLC in Austin, Texas, where she worked primarily with young veterans who faced physical disabilities, substance-abuse problems or other challenges. She holds an undergraduate degree in therapeutic recreation from Southern Illinois University and is a Certified Therapeutic Recreation Specialist.

Mary L. Smith

Director of Admissions

As the Director of Admissions for Oxford Treatment Center, Mary assists our clients and their family members during the admissions process for their medical detox and residential program stays at Oxford Treatment Center. Her experience in the addiction-recovery field includes working as a Clinical Assistant, Family Program counselor and Admissions Officer at New Life Lodge in Tennessee. In addition, she has spent time as a volunteer with the 23rd Judicial District Drug Court in Dickson County, Tennessee and managing Sober Living homes for women.

Mary Bragg

Director of Human Resources

Mary oversees human resources for Oxford Treatment Center’s inpatient and outpatient locations. She began her HR career with Cintas Corp. in Memphis, Tenn., and in Tuscaloosa and Montgomery, Ala. Desiring a career in healthcare, she joined Baptist Memorial Hospital-North Mississippi, where she served as HR manager for 14 years before coming to Oxford Treatment Center. She holds a bachelor of business administration and an MBA from Delta State University.