About Us
William Oliva M.D.
William Oliva M.D.
William Oliva M.D.
Founder of Olive Branch Clinic, Dr. Oliva is double board certified in General Psychiatry and Child & Adolescent Psychiatry.
Tayyaba Ali M.D.
William Oliva M.D.
William Oliva M.D.
Allama Iqbal Medical Colllege
Medical School
Griffin Memorial Hospital
Residency
University of Oklahoma Health Sciences Center -OKC
Fellowship
Kim Mahn, LMFT
William Oliva M.D.
Lisa Jones, LPC
Kim is a licensed marital and family therapist. Having worked in both inpatient and outpatient settings, she has provided individual and family therapy for adults and children of all ages. She utilizes play therapy with younger children and works in collaboration with parents to enhance treatment results and strengthen family relationships.
Lisa Jones, LPC
Derek Kabasawa, PA-C
Lisa Jones, LPC
Lisa is a Licensed Professional Counselor in the state of Oklahoma. With over 10 years of experience in serving the mental health population, she is dedicated to ending the stigma and raising awareness that Mental Health Matters. With experience working in outpatient and home-based settings, providing individual, group, and family therapy
Lisa is a Licensed Professional Counselor in the state of Oklahoma. With over 10 years of experience in serving the mental health population, she is dedicated to ending the stigma and raising awareness that Mental Health Matters. With experience working in outpatient and home-based settings, providing individual, group, and family therapy for children, adolescents, adults, and the geriatric population, Lisa is excited to bring her passion for guiding individuals through their therapeutic journey to Olive Branch Clinic.
Julye Eaton, PA
Derek Kabasawa, PA-C
Derek Kabasawa, PA-C
Julye is an experienced psychiatric physician assistant. She graduated from PA school in 2001. She has worked in Inpatient, Partial Hospitalization Program, Chemical Dependency detoxification and rehab, long term care and office-based settings.
Derek Kabasawa, PA-C
Derek Kabasawa, PA-C
Derek Kabasawa, PA-C
Derek is a licensed and nationally certified Physician Assistant. He earned a Master of Science degree from Oklahoma City University and also has a Master of Science in Nursing from the University of Hawaii where he was originally born and raised. Behavioral health has always been a special part of his life, with over 15 years of involvem
Derek is a licensed and nationally certified Physician Assistant. He earned a Master of Science degree from Oklahoma City University and also has a Master of Science in Nursing from the University of Hawaii where he was originally born and raised. Behavioral health has always been a special part of his life, with over 15 years of involvement with outpatient clinics, homeless shelters, and other organizations.
(Coming Soon) Luis Salazar, NP
(Coming Soon) Luis Salazar, NP
(Coming Soon) Luis Salazar, NP
Luis obtained a Bachelor’s degree from Buena Vista University in Iowa. His nursing experience consists of critical care and psychiatric care for children and adults. Luis attended graduate school at Herzing University in Wisconsin where he obtained his Psychiatric Mental Health Nurse Practitioner degree.