Formulary for Medicare D
Every state has different plans, and every plan has different selections. The one thing all are required to have is a minimum of two choices for every category of drug.
You can find these categories by going to Google & entering "Medicare D" Formulary. Be sure to use the quotation marks; it reduces the enormous number of entries. A few entries down the Google list you will see Medicare Part D - Quick Reference Guide. Click on this, and you will find New York State's summary of the types of drugs that MUST be covered. This will tell you what
types of drugs are covered; this list is the same for every state. It will also tell you what types of drugs are
not covered. I know it's the New York State Health Dept site, but this information is uniform throughout the country
Your next step is to go to
www.medicare.gov and work your way through the site, entering your state, your medications, etc. You will also be able to choose your pharmacy. (You can, of course, skip the Google step, and go direct to
www.medicare.gov.)
As to buying your medications at Wal-Mart without Medicare D coverage: This is still in the experimental stages, so far only Florida is doing it. But in any case, if you wait, on the grounds that you pay less and don't have many medications anyway, you may be putting yourself in an unpleasant situation down the line. There is a penalty which increases over time, for not joining Medicare D when you first become eligible. One suggested solution to this is to join the least expensive plan your state offers, thus keeping your eligibility open, without and then changing plans at a later date, if you need different/more coverage.
Personally, I don't like Medicare D very much, but older adults are pretty much stuck with it. We are lucky - for the moment, at least - in that the donut hole is covered by my husband's former employer; however this benefit is fairly rare. We both have some rather expensive medications, and it won't be till the end of the year that we can really calculate whether we have benefited by D; I am in the "gap" & will soon qualify for "catastrophic coverage", which will make for some complicated calculations, I think.
BTW - We joined AARP to get their plan, as it had the best coverage, and a monthly fee just under $24. There would, of course, be no reason for you not to buy your drugs at Wal-Mart, even if you are a member of AARP or some other plan. You'd have to compare the prices of each drug, Wal-Mart vs AARP or whichever plan you choose.
Good luck.