The 19-year-old, who has mild celebral palsy, was forced to put his athletics career on hold last year after he was diagnosed with Hodgkin's Lymphoma shortly after beginning University in Otago.
He endured eight rounds of chemotheraphy and 15 sessions of radiation treatment before being given the all-clear to get back into training, at which stage Phillips had refocused on Tokyo 2020.
Phillips said he was shocked at how quickly he got back to full speed after his gruelling treatment.
"I've bounced back pretty well, this season was just supposed to be a rebuilding season. My focus was just on getting back to full health and maybe getting to a few competitions," said Phillips.
"Ultimately, I didn't really expect anything amazing, so to get a few personal bests and do the qualifying was pleasant surprise."
Phillips will compete in the T36 100m and 200m sprint events in Rio.
Dore's rise in athletes came after a move to Dunedin last year to train under Raylene Bates, who steered the youngster into the javelin event. Having previously concentrated on shotput and discus, Dore had immediate success in the javelin, finishing eighth at last year's IPC athletics world championships in Doha.
The Rio Paralympics will run from September 7-18, getting underway around three weeks after the conclusion of the Olympic Games.