Any advice on showing proof of POA or durable POA for medical for my mother to doctor?

Brandi1, I agree with prior answers and think you will be better able to help your mom if you have a usable health care DPOA for her -- either taking effect immediately or not unless she becomes incapacitated. If your mom's will really does contain her only DPOA document, that document may be flawed. In any case, it's not easily usable, so she ought to sign a new one that you can use. There are many websites that offer blank forms. Here's just one that also contains a healthcare treatment directive (also a good thing to have): practicalbioethics.org/files/caring-conversations/durable-power-of-attorney.pdf

Worried, learned something new.

Like said, a POA is not incorporated into a will. That's an executor and they are, like said, two different things. One before death the other after. An executor to carry out what needs to be done to abide by the Will. A POA, financial and Medical, comes into effect when the person who assigned it can no longer make decisions for themselves. Your profile shows your carrying for someone with lung cancer. I will assume they can still make decisions so medical POA may not be needed at this time. Maybe needed in the future so if you Don't have one Mom needs to get one drawn up. Financial will be good now if Mom is not able to pay bills. But if you are on her bank account, this should be no problem yet. Both should be done if not assigned yet.

When you say "will" by any chance do you mean living trust? The way my MILs is set up, a trust was created and the lawyer drew up her will, trust and a POA and the 3 separate documents are bound together in a booklet. if thats what you have, you should only need to show the POA.

Brandi, sorry but I'm confused. A POA or DPOA is for actions while someone is still alive. I've never seen one contained in a Will, which would name someone to act as Personal Rep, formerly known as Executor or Executrix. Wills become active on death, and POAs terminate on death.

Whoever is asking you to provide proof of authority to act on your mother's behalf must not understand that a Will isn't the proper document to grant that authority.

Do you or your mother have an attorney? You might want to discuss this and ensure that you get the proper forms so that you can act on your mother's behalf if an emergency arises.

You should not have to show any Will to anyone while your mother's still alive.

Do the POA pages have your mom's signature on it? Notarized? If so, make copies of those pages only and keep them separate from the rest of the documents.