I just retired in June. I already pay a monthly fee for Tricare Prime. Plus I have deductibles and partial payment for prescriptions (depending on where I get them).
Not sure how much they will charge for Prime. This is a charge for Standard (non-prime), people who do not live near a Tricare Prime area. I already payout about $150 to $200 a doctor visits for items like a Flu or infection being on standard.