If you have not selected a health plan, the best way to find out if a doctor is in a plan you are considering is to look at your options in Preview Plans and follow the “View Directory” link for a specific plan to see the plan’s provider directory on the insurance company’s website. If you have a specific doctor in mind, it’s also a good idea to call that provider’s office and ask about the insurance it accepts.If you have already selected your health plan, go to your health insurance plan’s website and look up your provider (doctor, hospital, etc.). Doing this prior to making an appointment can help you verify that your provider participates in your chosen plan's provider network.