In Part I of switching subspecialties, Kathryn Moore discusses going from more general practice to subspecialty practice, and going from inpatient to outpatient medicine with Dr. Deborah Syna, whose 30 year career has spanned hospitalist neurology, general outpatient, neurophysiology, and movement disorders, in addition to consulting, industry, and expert witness work. They discuss the long and varied careers that neurologists can have, the reasons to consider a switch, and the challenges of doing so.