Meg Bakewell, who has cancer and cancer-related heart disease, sometimes emails her primary care physician, oncologist, and cardiologist asking them for medical advice when she experiences urgent symptoms such as pain or shortness of breath.

But she was a little surprised when, for the first time, she got a bill — a $13 copay — for an emailed consultation she had with her primary care doctor at University of Michigan Health. The health system had begun charging in 2020 for "e-visits" through its MyChart portal. Even though her out-of-pocket cost on the $37 charge was small, now she's worried about how much she'll have to pay for future e-visits, which help her decide whether she needs to see one of her doctors in person. Her standard copay for an office visit is $25.

"If I send a message to all three doctors, that could be three copays, or $75," said Bakewell, a University of Michigan teaching consultant who lives in Ypsilanti, Michigan, and is on long-term disability leave. "It's the vagueness of the whole thing. You don't know if you'll get into a copay or not. It just makes me hesitate."