Psychiatry Services

Shambhavi Chandraiah, M.D.

Dr. Chandraiah treats adults with a particular focus on women's psychiatric disorders including depression and anxiety disorders, as well as premenstrual, post-partum and perimenopausal disorders.

Richard Brewer, D.N.P.

Dr. Brewer sees adult and older adolescent patients who experience depression, anxiety, bipolar disorder, depression, anxiety, PTSD, OCD, ADHD, alcohol disorder, and personality disorders.

Rachel Witt, N.P. 

Rachel Witt, is a board certified psychiatric mental health nurse practitioner. She earned both her Bachelor of Science in nursing and Master of Science in nursing (psychiatric/mental health) from East Tennessee State University.

Michelle L. Arwood, L.C.S.W.

Michelle Arwood specializes in treatment for anxiety, bipolar disorder, depression, trauma and addiction. She holds specialty training in eye movement desensitization and reprocessing (EMDR) and cognitive behavioral therapy (CBT) counseling and a  specialty certification in trauma-informed treatment. She provides mental health counseling for ages 13 and older. 

Laurie Webb, L.C.S.W.

Laurie Webb became a social worker because she wanted to help people as they faced life's struggles. She tailors her patient care approach to best fit your unique goals. She is available to help patients with a variety of concerns including anxiety, depression, emotional dysregulation (mood swings), identity development, healing from trauma, fears, life transitions, relationships and self-esteem.  

Martha A. Bird, M.D.

Dr. Bird provides care for adult and adolescent patients and enjoys utilizing play therapy as part of her treatment regime.

Luis Isaza, M.D.

Dr. Isaza serves as medical director of Woodridge Psychiatric Hospital's pediatric Willow Unit. He enjoys caring for adolescent patients, treating childhood mood disorders, and providing acute adolescent inpatient services.

C. Allen Musil, M.D.

Dr. Allen Musil is board certified in general pediatrics, child and adolescent psychiatry, and adult psychiatry. He was trained at Vanderbilt University, Quillen College of Medicine, Dallas Theological Seminary, and University of Kentucky. He finished his fellowship in 1997, and primarily practices child psychiatry at Frontier Health and ETSU. Dr. Musil specializes in ADHD, mood disorders, and autistic spectrum disorders. Dr. Musil enjoys providing care for adolescent patients as well as treating child dysphasia and childhood disorder conditions. 

Marcia Wilson, D.O.

Dr. Marcia “Mar” Wilson has a passion for improving the well-being of children who have social, emotional or developmental challenges. Dr. Wilson incorporates assessment, therapy and medications as a means to increase happiness in the lives of children and adolescents.

Dr. Wilson has specialized training working with families of children with neurodevelopmental differences, such as autism. Dr. Wilson has worked with families who are deaf or hard-of-hearing. She is conversational in sign-language.

Dr. Wilson enjoys working as a team, teaching students and residents. As a fellow traveler through life, she values being present, curious, connected and compassionate.