3. Which plans cover Medicare Part D? Posted on September 11, 2017 at 12:14 pm.Written by advantage_admin At Triple-S Advantage, we have a variety of coverages that include Medicare Part D. These are: Optimo Plus (PPO) Royal (HMO) Royal Plus (HMO-POS) Vital Plus (HMO-SNP) Platino Plus (HMO-SNP) Platino Ultra (HMO-SNP) Platino Advance (HMO-SNP) Please contact us to learn more about these coverages and their eligibility requirements. Post navigation 2. What happens if I enroll late in Medicare Part D?3. What is the Coverage Gap Stage?