"One, two, three, four, five, six, seven," counted Brad Kaiwi Lum.

He is counting his daily intake of medication.

Lum has been living with HIV for nearly 20 years.

Two years ago, he had a major setback that sent him close to death.

"You come to a point where you say I've done everything I can. I've made peace with myself," he said.

Lum said he realized the choice to die was a choice he wanted to have.

"I didn't even have a say. I want to make sure that that doesn't happen to me ever again," he told KITV reporter Lara Yamada.

"It was a very moving experience actually," said retired Oncologist Dr. Chuck Miller.

He is a founding member of the Physicians Advisory Council for Aid in Dying which is partnering with the national organization called Compassion & Choices.

For the first time, in February, he prescribed a terminally-ill cancer patient a prescription to end her life.