Mina Timutimu trained as a nurse after she successfully obtained School Certificate from Waitara High School.
She began her career at the Opunake Cottage Hospital but has traversed much of Taranaki in the course of her work as a midwife.
Throughout her career, Timutimu has been at the forefront of developments in the Maori health field. She was the first Maori representative on the National Committee of the New Zealand College of Midwives. She also became a honorary member of this organisation in 2008.
In 2003, she was appointed to the inaugural Midwifery Council of New Zealand and during her time there she developed cultural safety standards which were incorporated into the New Zealand College of Midwives practice handbook.
It was the achievements in her 50-year-career as a nurse and midwife which saw her become a Member of the New Zealand Order of Merit (MNZM) in 2016.