Yes because everyone will want to share records / data. The specialized clinics / centers are used to this role! Especially if you are going from a more-generic to a more-specialized center, but even if you're walking down the street.

This is literally life-and-death. My recommendation is for full transparency, it was crucial for us.

> Yes because everyone will want to share records / data.

You should really try to have a copy of your own records. Different sorts of clinics may sometimes make it difficult to get a copy of studies, reports, etc. but it's something you should really insist in, to the point of avoiding places that don't give them to you. It lets you have greater selectivity of your healthcare providers by not depending on a provider for access to your own medical data. Resist the lock-in.

Also, providers may not archive your data forever. I've had one that realized my records from a visit some years earlier had been discarded/lost. They would have been really useful to make a comparison.

Having your records yourself, you won't have the need to tell them so they can ask for your records to the other provider on your behalf.

It's a good idea to tell them you came to them for a second opinion after they've already given it, so they can also give their opinion on the first opinion. However, that's different from telling them so they can get your records when you should already have them yourself.