A gerontologist is not a 70 year old MD but a doctor who specializes in treating the complications that come with old age. It's a new branch of medicine so there aren't many of this specialty available. It's too bad because as a society with a lot of aging individuals, we need doctors who understand us. I gather that you don't trust doctors so go with whatever you get here. My own primary care physician isn't much good for this either. She's fairly young and seems to think that you just have to put up with any problem that may arise and just dispenses pills to mask the problem.