Patients can choose between insurance-covered visits with primary care integration in regions with One Medical offices and cash-pay, on-demand virtual care in 48 states and Washington, D.C.

ERIC and the Paragon Institute have numbers supporting the case that the system is bad. HaloMD, a provider group, says the payers' numbers are bad.

Rep. Glenn Grothman, R-Wis., wants to require ERISA plans to close the gap between the patients' cost for the oral and IV versions of chemo drugs.

"Low and middle-income workers rely on those other forms of coverage, because they can't rely on access to employer coverage as companies outsource certain functions to contractors or hire more employees in roles that aren't eligible for benefits," said Dr. Sumit Agarwal, an assistant professor at the University of Michigan Medical School and School of Public Health.