Richard Martin, MD

Dr. Martin has specialized in Internal Medicine since he founded Martin Clinic in 1974. He received his Doctorate of Medicine from the University of Oklahoma in 1970. He completed his internship and residency through Washington University at Barnes-Jewish Hospital in St. Louis, Missouri. He served as Chief Resident in Internal Medicine during his final year at Washington University.


Thomas Martin, ACNP-BC, RPSGT

Tom Martin joined the Martin Clinic practice in 2006. He serves as the coordinator for sleep services and is the lead sleep technologist at Martin Clinic Sleep Center. He received his Bachelor of Science in Nursing degree from the University of Oklahoma in 1999. In 2000, Tom completed his Master of Science in Nursing degree at Vanderbilt University in Nashville, Tennessee. He is Board Certified by the American Nurses Credentialing Center as an Acute Care Nurse Practitioner. He has obtained the Registered Polysomnographic Technologist credential from The Board of Registered Polysomnographic Technologists.


Tom trained in pulmonary, critical care and sleep medicine for six years at Cumberland Lung and Sleep Specialists in Hermitage, Tennessee. He developed a broad-based knowledge of sleep disorders and specialized in treating patients who had previously experienced treatment failures.


Liphard O. D' Souza, MD

Dr. D' Souza is a Diplomate of the American Board of Sleep Medicine. He joined Martin Clinic in July 2009 and serves and the medical director of the sleep lab. In addition to providing guidance regarding technical practices and competencies of our staff, he provides formal interpretations for all studies that are performed in the sleep center as recommended by the American Academy of Sleep Medicine. He received his Doctorate of Medicine from St. John's Medical College and completed his internship at Father Muller Medical College in Mangalore Karnataka State in India. He completed his residency in Pediatrics at Lincoln Medical & Mental Health Center, New York Medical College in Bronx, New York. He is fellowship-trained in Neurology with Special Competence in Child Neurology from the State University-Kings County Hospital Center, Brooklyn, New York. He is board certified by the American Board of Sleep Medicine, the American Board of Neurology & Psychiatry, Clinical Neurophysiology, & American Board of Pediatrics. He is also credentialed as a developmental disability specialist / analyst. Dr. D' Souza has lived and practiced in Tulsa for many years - he and his wife have three children who are all physicians.


Martin Clinic Sleep Center dot 122 N Bailey St dot Pryor, OK 74361 dot Phone: (918) 825-0216 dot Fax: (918) 824-1919
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