I don’t think so. Basically with A & B, one covers in-hospital costs, like surgery, nursing care, room rate, meds administered while an inpatient, things like that. The other part pays for office visits, outpatient testing (think bloodwork, XRays, mammograms, colonoscopy, that type of stuff). Medicare D is the medication plan part - some Advantage plans cover it, some you have to buy it separately. Advantage plans basically fill in the gap that Medicare leaves you - that 20% copay type gap. There are many types of Advantage plans. (Kind of confusing if you ask me!)