A medical fluid delivery system in one embodiment includes: a first medical fluid delivery machine configured to generate a first message for remote transmission to a first patient or caregiver indicating (i) that the first medical fluid delivery machine is ready to perform a task or (ii) a preprogrammed time for the first medical fluid delivery machine to perform a task; and a second medical fluid delivery machine configured to generate a second message for remote transmission to a second patient or caregiver indicating (i) that the second medical fluid delivery machine is ready to perform a task or (ii) a preprogrammed time for the second medical fluid delivery machine to perform a task.