Dr. Mahmood Hossain | Medical Director
A native of Arkansas and a diplomate of the American Board of Psychiatry and Neurology, Dr. Mahmood "Emon" Hossain is a double board-certified psychiatrist specializing in child, adolescent, and adult mental health. With extensive experience in outpatient, inpatient, addiction, interventional, and emergency psychiatry, he provides comprehensive, evidence-based care tailored to each patient’s needs.
Dr. Hossain earned his Doctor of Osteopathic Medicine from the Philadelphia College of Osteopathic Medicine and completed his adult psychiatry residency at Citrus Health Network and the Florida International University Herbert Wertheim College of Medicine. He further specialized his training through the child and adolescent psychiatry fellowship at the University of Louisville School of Medicine’s Norton Children’s Hospital. He has been featured in the media for his expertise both at local and national levels and is a designated medical-legal evaluator for the state of California. He has served in various leadership roles, including Medical Director at SkyTherapist and Albatross TMS & Pain Management, focusing on neuromodulation treatments such as Transcranial Magnetic Stimulation (TMS).
A former Assistant Professor at the Menninger Department of Psychiatry and Behavioral Sciences at Baylor College of Medicine, Dr. Hossain continues to be involved in clinical research and medical education, as well as through professional organizations, including the American Psychiatric Association, the American Academy of Child and Adolescent Psychiatry, and the Clinical TMS Society. Maintaining active licensure with medical boards across several states throughout the country, he is committed to providing compassionate, innovative, and personalized mental health care. His goal is to help individuals of all ages achieve emotional well-being and improved quality of life through a holistic, patient-centered approach.
Kelsey N. Chumley | PMHNP-BC
Kelsey N. Chumley is a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) dedicated to providing compassionate, evidence-based care to individuals across the lifespan. With over 10 years of nursing experience in critical care, oncology, behavioral health, and end-of-life care, she brings a well-rounded clinical perspective and a deep understanding of the connection between physical and mental health.
Her clinical training spans a variety of psychiatric settings, including outpatient therapy, addiction treatment, and adolescent residential care. She is experienced in comprehensive psychiatric evaluations and medication management. Her approach emphasizes trauma-informed care, patient education, and motivational interviewing to support meaningful, lasting change.
Known for her empathetic and collaborative style, Kelsey is committed to building strong therapeutic relationships and empowering patients to take an active role in their mental health. She strives to create individualized treatment plans that promote healing, resilience, and overall well-being, supporting OBHAW’s mission to provide compassionate and accessible care to the community.
Ioana Georgescu | PMHNP-BC
Ioana’s clinical background includes extensive experience in adult and geriatric psychiatry, as well as acute hospital settings, allowing her to provide thoughtful, well-rounded care tailored to each patient’s unique needs. She specializes in comprehensive psychiatric evaluations, medication management, and collaborative treatment planning, with an emphasis on evidence-based and compassionate care.
Known for her calm presence and attentive listening, Ioana values building strong therapeutic relationships and empowering patients to take an active role in their mental health. She is fluent in English, Romanian, French, and Spanish and is passionate about serving diverse communities with respect and understanding.
Robin Terry | PMHNP-BC
Robinette "Robin" Terry, PMHNP-BC, MSN, is a Psychiatric-Mental Health Nurse Practitioner with more than 20 years of nursing experience. Her diverse clinical background includes emergency and trauma care, nursing leadership, community health, and inpatient psychiatric care with both adult and adolescent populations.
Prior to becoming a nurse, Robin served in the U.S. Air Force and spent nine years as a police officer with the Little Rock Police Department. Her combined experience in healthcare, military service, and law enforcement provides her with a unique understanding of the challenges faced by first responders, veterans, and individuals experiencing mental health crises.
Robin is passionate about providing compassionate, evidence-based psychiatric care and helping patients feel heard, respected, and supported. She has a particular interest in serving first responders and veterans and supporting individuals affected by trauma, stress, and other mental health challenges.
Robin earned her Psychiatric-Mental Health Nurse Practitioner post-graduate certificate from Chamberlain University and holds both a Master of Science and Bachelor of Science in Nursing from Arkansas Tech University.
Regenia Carter | PMHNP-BC, FNP-C
Regenia Carter is a board-certified Psychiatric Mental Health Nurse Practitioner who brings more than 20 years of nursing experience to Ouachita Behavioral Health and Wellness. She is certified through the American Nurses Credentialing Center (ANCC) in Psychiatric Mental Health and the American Association of Nurse Practitioners (AANP) in Family Medicine.
Regenia is passionate about providing holistic, evidence-based care that supports the whole person. She strives to build strong, trusting relationships with her clients—listening to their concerns, empowering them through education, and creating individualized treatment plans that foster healing and personal growth. Her approach combines psychotherapy methods such as Cognitive Behavioral Therapy (CBT) and interpersonal therapy with careful medication management when needed.
Before joining OBHAW, Regenia served in a variety of healthcare settings, including psychiatric, emergency, and primary care. She earned her Post-Master’s Certification in Psychiatric-Mental Health Nursing from Regis College, a Master of Science in Nursing from Walden University, and a Bachelor of Science in Nursing from the University of Arkansas at Little Rock.
Regenia is dedicated to reducing stigma around mental health and helping individuals live healthier, more balanced lives.