Portal Health Partners Plans. Health (2 days ago) To register or login.Members age 18 and older can sign up for a personal account. Parents or guardians who are members of Health Partners Plans can create an account and see information on their HPP family members. Parents or guardians who are not members of Health Partners Plans can call 1-866-901-8000 (TTY 1-877-454-8477) to sign up for HP.