Christian Treatment & Recovery Mental Health Staff

Rolf B. Gainer, Ph.D. Diplomate ABDA

Rolf B. Gainer, Ph.D., Diplomate ABDA, is the Chief Executive Office at Brookhaven Hospital and the Vice President of Rehabilitation Institutes of America. He is the founder of the Neurologic Rehabilitation Institute of Ontario (Canada). Dr. Gainer is a psychologist who has been involved in the design and operation of treatment programs since 1977. He has published numerous articles on mental health and rehabilitation topics and has presented at many international conferences. He remains active in outcome research.

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Our Doctors

Mark D. Gage, DOMark D. Gage, DO, is the Medical Director of Brookhaven Hospital. He is board certified in psychiatry and is a graduate of Western University of Health Sciences. In addition to his studies in psychiatry, Dr. Gage completed his undergraduate work in psychology at Chapman University. He brings over seventeen years of experience in psychiatry to Brookhaven.

Liphard D'Souza, MDLiphard D’Souza, MD, is the Medical Director of Brookhaven’s Neurologic Rehabilitation Institute at Brookhaven. Dr D’Souza holds multiple board certifications in Neurology. He obtained his medical training at St. John’s Medical College in Bangalor, India, and was an Associate Professor at Oral Roberts University School of Medicine at the City of Faith Hospital. He has worked in hospital, agency and private practice settings for over 32 years.

Chisoo Choi, MDChisoo Choi, MD, is an Internal Medicine Consultant for Brookhaven and the Renewal Christian Care Program. He is board certified in Internal Medicine. Dr. Choi graduated from Rush Medical College in Chicago and was a Clinical Assistant Professor at the University of Oklahoma School of Medicine and the Oral Roberts University School of Medicine.

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 earned a Ph.D. from Indiana University in 1972 with primary concentration in Central Eurasian Studies. He taught at Bacone College, Muskogee, Oklahoma before changing from the teaching to the medical profession. He earned an M.D. from the University of Oklahoma in `1987.   Dr. Van Tuyl has been a psychiatrist in McAlester, Oklahoma and Tulsa, Oklahoma 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.

Naveen Kumar MD - PhysicianNaveen Kumar, MD, is a Board Certified Consultant Psychiatrist and Addiction Medicine Specialist at Brookhaven Hospital.  He obtained medical training at JJM Medical College in Karnataka, India and completed Psychiatry Residency training at Oklahoma Health Sciences Center in Oklahoma City, Oklahoma.  Dr. Kumar has previous experience in hospital, agency, and private settings for 15 years.
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Don Smith - ChaplainRev. Don Smith Jr. is senior chaplain for Brookhaven Hospital’s Renewal Christian Care Program. Don is licensed and ordained through the Southern Baptist Convention and has been on staff at various churches since 1982 He has held church staff positions as Student Minister, Worship Minister and Sr. Pastor.  Don is currently Sr. Pastor of a local Tulsa church.  He has been with Brookhaven since December 2010.

Elizabeth Anderson, is a Chaplain for Brookhaven Hospital.

Leslie Patterson, is a Chaplain for Brookhaven Hospital and is associated with the International Ministerial Fellowship.  She has completed her Biblical studies and is an Ordained Minister.  Leslie is continuing her education at Oral Roberts University in Ministry and Leadership with a concentration pf Pastoral Care and a minor in Psychology.  Her experience has been in crisis counseling for five years with various organizations.  Leslie has been with Brookhaven for 2 years.

Suzanne Richards, is a Chaplain for Brookhaven Hospital.

Thomas Shaw, is a Chaplain for Brookhaven Hospital.


Lydia D'Ross - ChaplainRev. Lydia Gonzalez D’Ross aka Lilly, is the new Renewal Outreach Chaplain for Brookhaven Hospital. She is an ordained and licensed minister and also serves as an International Federation Chaplain.  Lydia is a graduate of Oral Roberts University with a Diploma in intensive Ministry and Training Development.  She is a member of several advisory boards including the OMHSAS System of Care, Oklahoma Women of Status Commission and Chair, and other mental health task force committees.  Lydia has been with Brookhaven since the Summer of 2014 and brings to Brookhaven Hospital, over 30 years of health and human services experience and a life time volunteer expertise from array of disciplines.

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RENEWAL is designed to offer hope and comfort to people suffering from mental health disorders or addiction disorders, and support to the people who love them. Our approach is based on respect for the dignity of the people we serve and the belief that through a faith-based program, life-changing results are possible.

RENEWAL: Christian Treatment and Recovery is an optional treatment supplement available through Brookhaven Hospital in Tulsa, Oklahoma. At Brookhaven, we understand that when you are suffering from an eating disorder, a personality disorder, a behavioral health disorder or chemical dependency, life can seem utterly hopeless. It can cause Christians to feel abandoned and distant from God. However, by strengthening your spirituality, in conjunction with our professional medical services, you can experience results that you never thought were possible.

RENEWAL is based on the belief in:

God who created us and loves us (Genesis 1:26)
Jesus Christ who redeems us (Isaiah 53:5)
The Holy Spirit who guides us (Acts 1:8)

When you participate in RENEWAL, you’re part of something much bigger than yourself. Brookhaven clients receive expert care from our team of mental professionals. Treatment is solution-focused and success-oriented. Our goal is to minimize symptoms, help individuals address life problems and live fulfilling lives. Sometimes healing requires a helping hand. We’re here to provide the guidance and support you need to recover.

Christian Care
The RENEWAL program at Brookhaven Hospital incorporates your faith into the recovery process in order to address your physical, mental and spiritual needs

Christian Drug Rehab
Our program provides a nurturing atmosphere that allows you to sober up and strengthen your bond with God.

Christian Bulimia Treatment
Individuals with bulimia alternate between compulsive binge eating and purging. Without treatment bulimia can be deadly. Brookhaven’s RENEWAL program can offer medical, psychological and faith-based eating disorder treatments.

PTSD Treatment
Post-traumatic stress disorder (PTSD) occurs after a traumatic event. Without getting proper help it can be debilitating. Strengthening your faith can help you confront the past and form a brighter future.

Christian Healing
When you are part of the RENEWAL program, you are part of something bigger than yourself. You are part of a support system based on professional medical care as well as spiritual guidance.

Compulsive Overeating
When you suffer from compulsive overeating disorder, your meals and your life can seem out of control. Take a faith-based approach to your eating disorder treatment at RENEWAL.

Anorexia Treatment
Anorexia is characterized by the restriction of food intake and the refusal to maintain a healthy body weight. Without getting help, anorexia can be life-threatening.

Bipolar Disorder Treatment
Everyone experiences ups and downs, but when you’re suffering from bipolar disorder life can seem out of control. Brookhaven’s RENEWAL program incorporates your spirituality into an advanced behavioral health program.

OCD Treatment
Obsessive-compulsive disorder (OCD) can fill your life with uncontrollable thoughts (obsessions) and rituals (compulsions) and stand in the way of relationships and your career.