What age do you need a geriatric doctor?

At age 60. But if you have had the same physician for many years, who knows you well, I see no need to change.

I would think when one starts to experience medical problems that occur usually when one gets older. My parents didn't seek out a geriatric doctor until they were in their 80's. Some one else might benefit at the age of 55.

Had a second opinion from a "geriatric specialist", who told me....
A Geriatic physician treats the frail elderly, usually ages 80 or 90.

Well, I know this was a lie.