One more for  self-certification, what if the driver's license is a commercial driver's license? Is it also possible to subscribe?
of course can also subscribe to receive email and / or text reminders about the status of their medical certifications
What does the statement about my doctor not being listed on some registry mean?
Yes, that would be the National Registry of Certified Medical Examiners Search. If your doctor is not listed there, then you must get a new exam practiced by a doctor listed on that registry.