Specialty medical doctors are going to want to know what medical disability you have so they can figure out what meds and whether your disabilities impact their specialty area for you. It is their business! It is not every Tom, Richard, and Harry's business but all your various health care workers need to know what meds you are on and your health background.

That a person is clumsy asking what your medical disability is (by asking what you are doing on Medicare) since it is not "obvious" (I have a good friend who is quadraplegic, so I know his doctors don't ask him what he's doing on Medicare?) your pleasant, positive attitude can go a long way to educate! "You mean, I don't look disabled? Sorry, I don't mean to make you blush" chuckle, "I have a bipolar affective disorder, was diagnosed 5 years ago and am taking, X, Y, and Z meds".