Your durable power of attorney likely does not have sufficient provisions to allow you access to your mother’s medical information. Health care providers are governed by strict HIPAA confidentiality rules. On the other hand, her health care power of attorney most likely does grant you the authority to talk with health care providers, but only if your mother is unable to make or communicate health care decisions. It doesn’t sound like your mother’s Alzheimer’s has progressed to that point, although it may later.
You should have your mother sign a HIPAA release at the doctor’s office. You also should have her sign a blanket HIPAA release that allows you to get this type of Medicaid information, in case she can’t sign a specific release later.
While you are doing this planning, you likely should take additional steps for protecting your mother’s home and assets, while she is mentally capable of doing so and is not likely to need additional care for quite a while. This type of planning when there is a diagnosis of Alzheimer’s, Parkinson’s, or other debilitating disease can ensure that your mother’s assets can be preserved and she will not run out of money before accessing government benefits.