Open enrollment for 2018 Healthcare Coverage is going on now through December 15, 2017. Big Sandy Health Care is available for assistance with enrollment applications. If you need information regarding healthcare coverage, such as eligibility, or need to enroll or re-enroll, you can contact Big Sandy Health Care at 606-886-8546. Applicants should enroll before the December 15 to be covered for 2018 to avoid the tax penalty.