Keystone First VIP Choice (HMO-SNP) is a Medicare Advantage health maintenance organization special needs plan (HMO-SNP). We provide the quality, value, and peace of mind you want from a health plan and the excellent services that you need. Keystone First VIP Choice contracts with the Centers for Medicare & Medicaid Services (CMS). Keystone First VIP Choice is funded by the federal government to manage Medicare benefits for our members.