A meeting between Dr O'Sullivan's supporters and members of the Te Hauora o Te Hiku o Te Ika board was scheduled for Mahimaru Marae yesterday, Ms Simons saying a lot of questions had to be asked.
Waireti Walters was also at last week's protest, saying she was too old to march these days but was anxious to force the board to meet with the people. Previous efforts to meet with the board had been unsuccessful.
"I want to know why we've got to this stage," she said.
"This is a big issue. Lance has made a point of coming home to look after his people. The natives are restless.
"The worst part is that these organisations were put in place to help Maori health, and they ain't doing that."
She had been Dr O'Sullivan's patient for more than six years. As soon as he turned up in town, that was it," she added.
"We had dinner together last night and he was devastated. He's from Te Rarawa; he came back to serve his people, and I feel betrayed and ambushed."