Okyanos Centers for Regenerative Medicine

Management Team

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Marc Penn MD, PhD, FACC

Chief Executive Officer, OGH
Director of R&D, Okyanos

Renowned clinician, inventor and scientist, Dr. Penn founded the Cleveland Heart Lab (now part of Quest Diagnostics), and served as Director in cardiology posts with the Cleveland Clinic (2000-11) including the Coronary ICU,  the Bakken Heart-Brain Institute and the Center for Cardiovascular Cell Therapy.

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Vincent Burton MBBS, FRCA

President & Chief Anesthesiologist

Dr. Burton completed his residency training in the United Kingdom at Queen’s Hospital of Staffordshire, Norfolk and Norwich University Hospital as well as Addenbrooke’s Hospital Cambridge University. He is a Fellow of the Royal College of Anaesthetists (FRCA).

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Dr. Warren Sherman, MD, FACC

Chief Medical Officer, OGH
Regenerative Medicine Specialist

Dr. Sherman is a renowned interventional cardiologist with an established focus in cell-based therapies who provides the highest level of care for patients with chronic heart failure and refractory angina.

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Gretchen Dezelick, RN, BSN, CCRN, CNOR, LHCRM, CASC

Director of Nursing / Clinical Administrator

Gretchen Dezelick has more than 35 years of nursing experience progressing from bedside nursing to administrative and management positions in a variety of healthcare settings.

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RK Khosla, MBA

Chief Business Officer, OGH

R.K. is an experienced C-level Biotech and Medtech Executive who has raised funds for ventures from inception  through Phase I FIM and Phase IIb. He has expertise evaluating early stage technologies, as well as experience running revenue stage companies.