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Our Team

Leadership Team

Mark D. Gage, DO

Mark D. Gage, D.O., is the Medical Director for Brookhaven Hospital. He received his undergraduate degree in psychology from Chapman University, his Medical Degree from Western University of Health Sciences, Internal Medicine Internship from Tulsa Regional Medical Center, and Psychiatry Residency from the University of Oklahoma College of Medicine, Tulsa, where he served as Chief Resident. Dr. Gage is Board Certified in Psychiatry by the American Board of Psychiatry and Neurology, and has maintained certification for over 20 years. He brings a broad spectrum of experiences to Brookhaven, with extensive history in treating mental illness, chemical dependency, eating disorders, military medicine, emotional trauma, and psychiatric complications of brain injury. He is a Fellow of the American Psychiatric Association.

Naveen Kumar, MD

Dr. Naveen Kumar is a staff psychiatrist at Brookhaven Hospital. He is board certified in Psychiatry, Neurology, and Addiction Medicine. Following the completion of his residency from the University of Health Sciences Center in Oklahoma City, Dr. Kumar has served in a number of mental health centers in Oklahoma, as well as work within the Department of Veteran’s Affairs.

Paul Cochran, MD

Paul Cochran, MD, is a graduate of University of Oklahoma Medical School and holds board certifications in Family Medicine, Emergency Medicine, and Psychiatry.  His experience includes founding and operating free clinics, practicing emergency medicine in area hospitals and serving as the Director of EMS Boards for Wagoner and Creek counties.

Charles D. Van Tuyl, MD

Charles D. Van Tuyl, MD earned an M.D. from the University of Oklahoma in `1987.   He has served as a psychiatrist in McAlester, Oklahoma and Tulsa, Oklahoma. Prior to entering the medical profession, he taught at Bacone College and has also published several scholarly books including a Handbook of the Cherokee Verb and a translation of Athanasius Kircher’s China Illustrata (1667) from the original Latin into English.

Coby D. Nirider, PT, DPT

Coby D. Nirider, PT, DPT, is the Administrator and Chief Clinical Officer at Brookhaven Hospital. Dr. Nirider has over 16 years of experience treating individuals with TBI and Stroke in the post-acute residential and outpatient settings.  He received his Master’s degree in Physical Therapy from Nova Southeastern University in 1999 and Doctor of Physical Therapy in 2010.  Dr. Nirider is currently an Adjunct Professor in Nova Southeastern University’s Transitional DPT Program.  He has several peer-reviewed research publications and has co-authored chapters in rehabilitation texts.

Ros Burrows, PhD

Ros Burrows, Ph.D. is a neuropsychologist and the NRI Program Director. Dr. Burrows has over 25 years experience treating individuals with traumatic brain injury in post-acute and residential settings. He received his Ph.D. from Texas A&M University and he previously served as Vice President for the Oklahoma Brain Injury Association.

Debbie Jones, RN, CBIS

Debbie Jones, RN, CBIS, is the Director of Nursing at Brookhaven Hospital. Debbie brings over ten years of nursing experience to Brookhaven. She obtained her degree in nursing from Sanford Brown Business College, St. Peters, MO. Debbie is also a Certified Brain Injury Specialist.

Janice Ponds, LADC, CBIS

Janice Ponds, LADC, CBIS, is the Director of Utilization Review at Brookhaven Hospital. She holds a B.S. in Education from N.C. A&T State University; a M.A. in Special Education/School Psychology from Ohio State University; and did post graduate studies in clinical psychology at the University of Virginia. Janice’s experience as a teacher; school psychologist; psychiatric counselor; clinical director; substance abuse treatment program coordinator, director, and supervisor; a certified brain injury specialist; clinical consultant; and a licensed therapist have given her insight into practical ways to understand and effectively help individuals from all walks of life.

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