Medicare Supplement Learn More About Medicare Supplement Plans. Medicare Supplement Plans Medicare Supplement Plans are offered by private companies. Medicare Supplement Plans cover the 20% that Medicare doesn’t cover.Individuals have the ability to select plans based on: Have Medicare Parts A & B Affordability Tailored to your needs Members can use any provider that accepts Medicare in the country. Medicare Supplement Plans DO NOT include: Hearing Vision Prescriptions Dental Questions? For more specific detail to see if a Medicare Supplement Plan is the right plan for you please contact our concierge. CONTACT US