![Edited Osullivan 1024x576.jpg](https://adultpuzzlebook.com/wp-content/uploads/2024/04/EDITED_OSullivan-1024x576.jpg)
Mayo Clinic remembers Dr. Michael O’Sullivan, former member of Board of Governors, pioneering leader
Featured News April 25, 2024 Michael O’Sullivan, M.D., a former member of the Mayo Clinic Board of Governors, CEO of Mayo Clinic in Arizona, and the founding medical director of Mayo Medical Laboratories (now Mayo