B.A.S., Stanford University, Stanford, California, 1985.
M.D., Emory University, Atlanta, Georgia, 1990.

Residency/Fellowship: Brigham and Women's Hospital, Boston, Massachusetts (neurology), 1991-1994; Massachusetts Eye and Ear Infirmary, Boston, Massachusetts (neuro-ophthalmology), 1994-1995.

Certified by the American Board of Neurology.

Brigham & Women's Hospital, Boston, Massachusetts, active staff, 1995-1996; University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, director, Neuro-Ophthalmology Service, 1996-2003; Veterans Administration Hospital, Stars and Stripes Healthcare Network, Boston, Massachusetts, staff, 1996-2003; University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, Assistant Professor of Neurology and Ophthalmology, 1997-2002; Associate Professor, 2002-2004; Vice President, Presbyterian Hospital Ophthalmology/Otolaryngology Services, 2001-2004; Beverly Hospital, Beverly, Massachusetts, staff neurologist and neuro-ophthalmologist, 2004-2005; Massachusetts General Hospital, Boston, Massachusetts, associate neurologist and neuro-ophthalmologist, 2006-2010; director, Neurology Urgent Access Clinic, 2006-2012; unit chief, Division of Neuro-Ophthalmology, 2006-2012; unit chief, General Neurology, 2006-2012; neurologist, 2010-2016; Harvard Medical School, Cambridge, Massachusetts, Associate Professor, Neurology, 2006-2016; City Hospital Triemli, Zurich, Switzerland, Head of Neurology, 2011-2012; Hospital of the Canton of Lucern Switzerland, Lucern, Switzerland, division chief, Multiple Sclerosis, 2013-2019; head, Multiple Sclerosis Center, 2013-2019; division chief, Clinical Neurology, 2013-2021; head, Stroke Unit, 2013-2021; Professor of Medicine, 2013-2021; Luzerner Kantonsspital, Luzern, Switzerland, Director of Multiple Sclerosis, 2013-2021; neuro-ophthalmologist, 2013-2021.

Appointed to the staff of Mayo Clinic in Florida, 2021; Professor of Ophthalmology, Mayo Clinic College of Medicine and Science, 2022-present; Joint appointment, Department of Neurosurgery, 2021-present.