Today, our employees are located at our three major campuses in Phoenix/Scottsdale, Arizona, Jacksonville, Florida, Rochester, Minnesota, and at Mayo Clinic Health System campuses throughout Midwestern communities, and at our international locations. Credentialed as a Registered Dietitian Nutritionist (RDN) through the Commission on Dietetic Registration (CDR), or eligible to obtain registration upon hire, must obtain RDN credential within three months of hire.