Provider Contacts


Hewlett-Packard Enterprise Services (HPES) serves as the fiscal agent for Medicaid and PeachCare for Kids, which includes providing site updates and maintenance to the GAMMIS portal.  If you have trouble accessing the GAMMIS portal, HPES Customer Service Representatives are available to assist you Monday through Friday, 8 a.m. to 7 p.m. ET. 

  • Providers:  1-800-766-4456
  • Members:  1-866-211-0950
  • For the quickest response, please send an inquiry through the contact page of the GAMMIS Portal