Providing the highest standard of healthcare requires the leadership of trained experts in cell therapy and medical specialties. The Okyanos Medical Leadership team will consult with your referring physician as needed, and candidates for Okyanos Cell Therapy are selected for treatment only after a thorough review of prior medical history.

Gretchen Dezelick RN, BSN, CNOR, LHCRM, CASC

Director of Clinical Operations

Gretchen Dezelick

As the Director of Clinical Operations, Gretchen Dezelick supervises daily patient management in our facility, coordinates the multidisciplinary team of specialists who may participate in patient care and maintains the superior cleanliness and safety standards that make Okyanos a center of excellence. With more than 25 years of nursing experience progressing from bedside nursing to administrative and management positions in a variety of healthcare settings, Gretchen was a Certified Critical Care Nurse (CCRN) for more than 20 years and has been a Certified Peri-Operative Nurse (CNOR) for more than 3 years.

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Vincent Burton MBBS, FRCA


Vincent Burton, MBBS, FRCADr. Vincent Burton is a board-certified anesthesiologist as well as a Fellow of the Royal College of Anaesthetists, UK (FRCA). Further, he completed a residency at Cambridge University’s Addenbrooke’s Hospital. Dr. Burton works to provide each Okyanos patient a personal education on the anesthesia protocol prior to surgery, and he is praised by our patients for his level of care.

Freeman H. Lockhart MBBS, FRCSC

Orthopedic Specialist

Freeman H. Lockhart, MBBS, FRCSC

Dr. Freeman Lockhart serves as Orthopedic Specialist at Okyanos. As an expert in joint, skeletal, spine and muscular pathology with more than 20 years in his medical career, Dr. Lockhart works with each orthopedic patient at Okyanos to understand your exact degenerative condition and formulate a plan of care. In our state-of-the-art facilities and with the guidance of enhanced imaging technology to ensure proper placement of the stem cells, Dr. Lockhart then performs direct cell therapy injections using your own adipose- (fat) derived stem and regenerative cells to address damaged joints, bone, tendons, ligaments or cartilage.

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