Have been + long time ago

I have been to a doctor to check my heart a long time ago.


Is the above correct? Even if you went to Argentina ten years ago, you would always say I have been to Argentina.


I met a doctor more than ten years ago. I have a hunch my sentence is correct because of the context.

What do you think?

*I have been to a doctor to check my heart -.

If you only said 'I have been to a doctor to check my heart,' that would be fine. You're using the
present perfect to tie yourself to the current time. But when you use that phrase 'a long time ago,
you are putting the action in the completed past, so the past tense is necessary: "I went to a doctor
..."
Similarly, for your Argentina example, "I've been to Argentina" is fine. But as soon as you add a
definite time in the past (for example, "last year"), you have to switch to the past tense: "I went
to Argentina last year."