Those of us who live alone need to plan for emergencies. I keep a single sheet of paper displayed in a prominent place in my motorhome and in my purse in case I am taken to an emergency room and can only drool, as you mentioned. It gives my medical history, information about my current meds, and my insurance information. It also gives contact information for my sons and my current doctors.
Having lived alone on the RV park for 10 months before my collapse I learned a few things.
1 - Most every phone has an "Emergency Call" function. On mine if you add contacts to the "emergency call" group anyone can make two way phone calls to those numbers with the phone locked. On mine you can also enter a brief medical history and a list of meds you take.
2 - EMT and first responders are training to look for contact info on the refrigerator. I now keep a copy of this there. Judy - you sound like yours is pretty comprehensive and complete.
3 - Keep two copies of your contact list in your wallet/purse - I shrunk my down to a small font and used a piece of iron on laminating paper to laminate them. At this tim the Sheriff took my paper contact list, called down the list and could only raise my brother - I never saw this one and only list again.
He called my step-mom who started spreading the word. My sister called my phone. The park owner could not answer but got the phone number from the screen and called back. Even when I was conscious and could use the hospital phone, I had no one's number committed to memory and did not have my paper list from my wallet. Eventually my sister was able to call through to the hospital and they routed the call to my room.
4 - As many of us are transient, it is always important to have someone local who can help you out. I eventually had the park owner come and get me for discharge. My brother did not arrive for another day. You can also set up a person to have authority to approve care even if that is over the phone. I have my sister now designated for that.
5 - After my discharge and before my brother arrived I asked my RV park neighbor to be prepared to call 911 and my emergency contacts if I had a relapse at night or while the park owner was not around.
When you have an event, you can't overcommunicate or have a plan that is too thick.