MyVaxIndiana Immunization Portal is available 24/7/365 with limited downtime for maintenance. We provide support via email during weekdays. Help Desk is closed on weekends and all Indiana State holidays. MyVaxIndiana Support Center Indiana Department of Health 2 North Meridian Street #6A-22 Indianapolis, IN 46204-3010 Email: Myvaxindiana@health.in.gov Phone: 1-888-227-4439 Fax: 317-233-8827