Date:  November 02, 2025  

Welcome to the Ohio Impact Statewide Immunization Information System (ImpactSIIS)
Web application.

This web application allows enrolled users to conveniently search for patients in the ImpactSIIS Central Registry and to view the patients' vaccination record. In addition, authorized users can add and edit patient records and vaccination records, as well as maintain facility, physician, and lot number data.
 

NEED HELP?
For instructions on how to use the Ohio ImpactSIIS:
  1. GUIDES - Visit the "Document Center" under the Main Menu Heading after login to ImpactSIIS.
  2. ANSWER DESK - Contact the Ohio ImpactSIIS Help Desk by phone at 1-866-349-0002 between the hours of 8 a.m. and 5:30 p.m. ET, Monday through Friday.
 
impact siis logo
 
Valuable Links
 
bullet Visit the American Immunization Registry Association homepage.
bullet Get the latest VIS statements from the Immunization Action Coalition homepage
bullet For the latest Immunization Schedule and more visit the CDC website.
bullet ImpactSIIS Security Agreement.
bullet Request to be Removed Form
bullet Request to be Reinstated in ImpactSIIS
bullet Order ImpactSIIS Brochures
bullet ImpactSIIS Brochure (PDF version)
bullet Report a Reaction (VAERS)
bullet Vaccine Storage Job Aid - Refrigerator
bullet Vaccine Storage Job Aid - Freezer
bullet CDC Immunization Schedules
bullet Ohio Child Medical Statement for Child Care