MINNEAPOLIS — Nancy Kjellberg's allergies were insufferable again, with sharp sinus pain and her nose so stuffed up it was hard to breathe.

MINNEAPOLIS — Nancy Kjellberg's allergies were insufferable again, with sharp sinus pain and her nose so stuffed up it was hard to breathe.

She didn't want to go to the doctor. This time, she didn't have to.

Kjellberg, 59, simply charged $25 to her credit card and spent a few minutes answering an online survey at Zipnosis.com. Hours later, she received a diagnosis electronically and picked up antibiotics at her pharmacy, without ever talking to the clinician in person or on the phone.

"I would rather be doing other things than going to the doctor's office," said Kjellberg, a retired production planner who lives in Big Lake, Minn. "If you have ever had any of these things, you pretty much know what's wrong with you."

Minneapolis-based Zipnosis thinks it is onto the latest innovation in convenient health care for minor ailments like common colds, allergies or bladder infections. Led by Rick Krieger, who co-founded a company that became MinuteClinic, Zipnosis started a one-year pilot this month with local provider Park Nicollet Health Services.

Already, more than 300 people have used the service. Consumers fill out Zipnosis' survey online, and two nurse practitioners on duty at Park Nicollet's Quick Check center review the answers and send back a diagnosis.

But there are skeptics. Some local doctors say they wouldn't recommend Zipnosis to their patients for fear of misdiagnosis. Dr. Benjamin Whitten, president of the Minnesota Medical Association, said his personal view is that "written information and checklists" can't replace seeing a patient in person.

"I see the absence of a direct communication as a shortcoming and a potential problem," Whitten said.

Zipnosis and Park Nicollet say the service gives patients an option that's affordable and convenient. Zipnosis costs $25 to use, priced to compete with insurance co-payments and cheaper than a MinuteClinic visit. The company estimates a clinician can make a diagnosis and recommend treatment from the survey in three minutes.

"There is nothing that can hold water to what we are doing," said Jon Pearce, Zipnosis' chief operating officer and one of its co-founders. "We can lower the cost of health care and still make it profitable for clinicians."