Our substance use treatment program provides medication and behavioral health therapy for substance use disorders, primarily opioid use disorders. Patients will not need to be current patients of Missouri Ozarks Community Health, and they will not need to be referred to the program. Dr. Matthew Brown oversees the program.
The substance use treatment program will accept walk-in patients and same-day appointments.
We currently accept Medicaid, Medicare, and most private insurance. A sliding fee is available to those who qualify.
MO Ozarks Substance Use Treatment Providers
Michelle Marcak, PMHNP
Michelle Marcak joined Missouri Ozarks Community Health in June 2025.
She received her bachelor’s degree from Arkansas State University in Mountain Home. She then earned her master’s degree from Cox College of Nursing in Springfield. Marcak previously worked for a hospital in both a geriatric psychiatry unit and providing outpatient behavioral health. She primarily works within the substance use treatment program at Missouri Ozarks, providing medication management.
She will also provide care to behavioral health patients who are referred to her by other providers at Missouri Ozarks.
Angela Sutton, LPC
Angela Sutton joined Missouri Ozarks Community Health in June 2025 as a licensed professional counselor.
She earned a bachelor’s degree from Drury University and a master’s from Missouri State University. She has many years of experience working in substance use treatment.
She is available to see patients of the substance use treatment program in Ava.

Lorna Alcala, CHW
Lorna Alcala joined Missouri Ozarks Community Health in 2025 as a community health worker.
She helps connect substance use treatment patients to community resources.
Missouri Ozarks Community Health has 6 Clinic Locations.
A wide variety of primary medical and dental services are offered at each clinic location.
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