Twice a month, Dr. Bell, Suzie and a staff of 250 dedicated volunteers transform a church gymnasium into a full-service medical center. At ECHO Health Clinic, patients have access to private exam rooms, a makeshift pharmacy, free meals and a triage area, which offers immediate care to those in need.

"From medical care and counseling to serving up a hot meal, everyone is made to feel at home," Dr. Oz says. "There's sort of a unity of spirit that I feel when I'm here. And, you know, it's not high tech, but it's high touch."

Jeff, one of 46 million Americans without health insurance, tells Dr. Oz he wouldn't be able to afford his diabetes and neuropathy medications without access to ECHO.

"If this clinic wasn't here, what would you do?" Dr. Oz asks.

"Probably fall through the cracks," Jeff says.