MITCHELL, S.D. (MITCHELLNOW) Navigators in South Dakota are on call to help people seeking health insurance during open enrollment. Open enrollment is the time for people to sign up for 2025 health plans through the federal insurance marketplace, from November 1st through January 15th. And for people who get coverage through Medicare, open enrollment is now through December 7th. Penny Kelley with the Community Healthcare Association of the Dakotas says four out of five people get coverage for ten dollars per month or less through the insurance Marketplace.