Juan A. Crestanello, M.D.

Grzegorz S. Nowakowski, M.D., is a distinguished consultant and Professor of Oncology and Medicine in the Division of Hematology at Mayo Clinic, where he also serves as the Deputy Director of the Mayo Clinic Comprehensive Cancer Center for Clinical Research. An internationally recognized researcher, Dr. Nowakowski focuses on the molecular classification and biology of lymphoproliferative disorders, as well as innovative clinical trial designs and novel therapies for lymphoma and hematological disorders. With extensive regulatory experience, he has acted as a principal investigator for numerous clinical trials and has collaborated with regulatory agencies, including the FDA. Dr. Nowakowski has authored over 250 articles and book chapters, contributing significantly to the field of hematology and oncology while mentoring faculty members both in the United States and internationally. Generated from the website

Mayo Clinic transplant doctors, surgeons and other transplant staff members have extensive experience with living donation. With three sites across the country, Mayo Clinic has one of the largest living-donor kidney transplant programs in the United States.

W. Oliver Tobin, is a neurologist, with specialty interest in multiple sclerosis. His clinical focus includes: Identification and management of Tumefactive Multiple Sclerosis CLIPPERS Transverse myelitis Neuromyelitis optica Neurosarcoidosis Neurologic complications of histiocytic disorders, including Erdheim-Chester Disease, Langerhans Cell Histiocytosis and Rosai-Dorfman Disease Autoimmune encephalitis In addition to his clinical activities, Dr. Tobin is active in research and education, providing mentorship to residents and fellows. He was awarded teacher of the year by the Mayo fellows Association in 2017. He authors expert content and publishes in high-impact scientific journals. Dr. Tobin is a member of the Ask Mayo Expert neurology knowledge content board and the multi disciplinary Histiocyte Interest Group.