Does Medicaid cover anything that medicare does not?

You have been a parasite for how long?

Yes, you need to sign up for your plan. You cannot just go to any doctor unless that is the plan you are on.

If you live in a state that expanded Medicaid and you received welfare because of those new regulations you could possibly loose that coverage when you turn 65. However, depending on your income you might still get Medicaid to pay your Part B premiums and you might also qualify for Extra Help to help pay your drug costs.

If you are currently getting social security or SSDI you'll automatically get your Medicare card about 3 months prior to your birth month, so you should already have received it. If not, you need to apply immediately.

Depending on your location there might be special Medicare plans available for those that have both Medicare and Medicaid. These are known as "Dual Eligible" plans and most have additional benefits such as dental, transportation to medical providers, and free over the counter items such as bandages and tooth paste. If such a plan is not available in your location there still might be very good Medicare Advantage plans that will give you extra benefits including drug coverage.

If you remain on Medicaid and do not select your own drug coverage the state will assign a plan for you. The problem with that is they don't care what you get so the plan they assign might not be the best plan for you.

When you have Medicare and/or Medicaid you can only go to doctors that accept that coverage. If you remain on Medicaid you might loose your current doctor if that doctor doesn't also accept Medicare.

You'll want to speak with an agent familiar with and representing all of the plans in your area for assistance. The agent can make sure you have the proper coverage and can explain the pros and cons with all of your different options. There is no charge using an agent.

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You don't automatically receive a Medicare card. You need to apply at least a month before you turn 65. Your care will be coordinated between Medicare and Medicaid. Medicaid may pay your Medicare premium, deductible, and co-pays.