I am looking for an orthopedic surgeon who specializes in knee surgery in Boca Raton and who takes AARP Medicare.

Obamacare. In fla. Especially w/ aging population more and more ors are retiring or not accepting ' new' medicare pts. This is unfortunate and related in part to reduced payments for physicians who specialize in hip and knee reconstructive surgery .I would start by asking your local hospital administrator which ors on staff does knee replacements. Best of luck!
AAOS . Try going to the american academy of orthopedic surgeons website at www.Aaos.Org. There you will likely be able to find an orthopedic surgeon in that area with whatever specialty you're looking for.