Aetna Dental Plans have no waiting periods. Discounts are available about 72 hours after you become a member. You can use the discounts as often as you like, with no annual limits or limits on treatments. Learn more about Aetna Dental Insurance waiting periods. One Medical is only in network with specific ACA-related plans sold via the Health Insurance Marketplace, which are listed above. For individual and family health plans purchased privately (outside of an employer) through an insurance company, broker, or small business group, please be aware that if we're not in network with their Exchange counterparts, we may not be in network with those plans.