But the ACA changed all that. Medical underwriting is no longer used, although applicants can now only enroll during open enrollment or a special enrollment period triggered by a qualifying event (similar to how enrollment works for employer-sponsored plans). Essential health benefits are now covered on all new individual major medical plans in every state. And millions of people are receiving premium subsidies that cover the majority of their premiums for plans purchased in each state’s health insurance exchange (the ACA’s consumer protection reforms apply to plans sold outside the exchanges as well, but the subsidies are only available in the exchange). The ACA also limits the percentage of premiums that insurers can use for administrative costs, including profits and executives’ salaries; insurers have refunded billions of dollars to consumers as a result of the new rules.
A good place to start is HealthCare.gov. This is the health insurance exchange created by the The Patient Protection and Affordable Care Act, and is a one-stop shop for private individual market health insurance plans (note that the exchange itself is run by the government, but the health plans for sale in the exchange are all private, from the health insurance companies with which you're already familiar). People in 39 states use HealthCare.gov to enroll in individual market plans. The other 11 states and the District of Columbia have state-run exchanges, and you'll be directed to their sites from HealthCare.gov when you select your state.