Request an appointment By Mayo Clinic Staff Print Mayo Clinic works with hundreds of insurance companies and is an in-network provider for millions of people. In most cases, Mayo Clinic doesn't require a physician referral. Some insurers require referrals, or may have additional requirements for certain medical care. All appointments are prioritized on the basis of medical need. Learn more about appointments at Mayo Clinic. Please contact your insurance company to verify medical coverage and to obtain any needed authorization prior to your visit. Often, your insurer's customer service number is printed on the back of your insurance card. The departments of psychiatry and psychology in Arizona and Florida provide consulting services for patients referred by their Mayo Clinic physician. These services support the integrated care of the other programs and services at Mayo Clinic. Online requests Request an appointment at Mayo Clinic Mayo Clinic's campus in Rochester, Minnesota Central Appointment Office 507-538-3270 7 a.m. to 6 p.m. Central time Monday through Friday International patients International patients can request an appointment at any Mayo Clinic location. Appointment requests for international patients CON-20319260 Patient Care & Health Information Diseases & Conditions Drug addiction (substance use disorder)