Inclusion Criteria:  Marshfield Clinic Health System patient aged 12 years with at least one preventive visit or two evaluation & management visits with a Marshfield Clinic Health System provider in the last 36 months Due for at least one adolescent vaccine (HPV, MenACWY, Tdap)  Exclusion Criteria:  Primary care provider is not affiliated with Marshfield Clinic Health System Opted out of Marshfield Clinic Health System vaccine reminder notifications Missing or invalid contact information Deceased