Maria Fleseriu, MD, FACE, is a Professor of Medicine and Neurological Surgery and Director of the Northwest Pituitary Center at Oregon Health & Science University. Dr. Fleseriu received her medical degree from the University of Medicine and Pharmacy, Timisoara, Romania, and completed an endocrinology fellowship with a focus on pituitary disorders. She pursued additional training in the US: a residency in internal medicine at Case Western Reserve University and an endocrinology fellowship at Cleveland Clinic.

Dr. Fleseriu has a long-standing clinical and research interest in the pathophysiology and treatment of pituitary and adrenal disorders. She is a frequent guest speaker at national and international meetings on various topics related to the treatment of pituitary tumours (especially Cushing's disease and acromegaly), is the principal investigator in numerous clinical trials, and has authored over 100 manuscripts and book chapters.

She currently chairs the Endocrine Society Guidelines Committee and the Hypopituitarism Task Force and she is on the Board of Directors of the Pituitary Society. She is also a member of the Endocrine Society Knowledge Task Force and the Clinical Endocrinology Update Steering Committee, and serves on several committees for the American Association of Clinical Endocrinology. Dr. Fleseriu is Consulting Editor for Endocrinology Clinics of North America, Chief Editor of Pituitary Endocrinology for Frontiers in Endocrinology, Senior Editor for Endocrinology, Diabetes and Metabolism, CR and a member of the editorial board of many journals, including Pituitary, Endocrine, and Reviews in Endocrinology and Metabolism.