I have had to take my mom, 85 with dementia, to the doctor from time to time (including twice this week). It causes anxiety for her and for me. Not only does she deny symptoms, but she is combative and disruptive. I don’t remember seeing other patients with obvious dementia in the office. Are there any alternatives, perhaps palliative care?
Do you use a portal on your phone? You can message your doctor about your concerns.
If you do use a portal, start there and see if you can bypass an actual office visit.
Your doctor or nurse will message you back and let you know what to do and if they need you to bring your mom into the office.
Or simply call and ask to speak with the doctor or nurse. They usually won’t get back to you until the end of the day.
Sooo, what are these visits? How necessary are they? What are you expecting them to do? I think shifting to palliative care is a great idea but I'm not sure exactly how much it will help.
How advanced is her dementia? Does she live with you? If her dementia or other maladies are bad enough, you could consider a hospice eval. That's what I would do and plan on doing when/if my mom declines enough to be considered for it.
Best of luck.