CD, that kind of surprizes me. G has numerous doctors. Prescriptions, lab work, scans - whatever, are all sent directly to the provider. In addition there is a patient portal where we can see/read all orders and Doctor's charts for every visit, test, procedure or follow up order. I usually accompany him to his DR. visits. I also check his chart online.
All of our docs now have patient portals, and all but one have online bill pay (which is more important to me than the portal).
Their effectiveness is dependent on the office and the doctor. My urologist is my age, but he's Mr. Technology, so he uses it, he actively uses a laptop during appointments, and even shows me stuff on his smartphone, using it like a pro.
Some of the other docs, though, they depend on their staff for any and all things technical. My wife's cardiologist probably can't answer a cell phone without help, and during appointments, someone sits in with him to take notes on a laptop.
All of them, regardless, take prescription refills from the pharmacist through a fax. I can request a refill through the various portals, but for communicating with the pharmacy, it's still faxes all the way. They're probably keeping the fax business afloat. Same was true with the vet and our dog's meds. Always a fax.
My new GP, they're just getting into the digital age. Until last year, before my old doc sold the practice, they took cash or check only for payment, no credit cards, and their appointment system was a big paper appointment calendar. There wasn't a computer in the place, and it wasn't like the doc was an old fogey - were the same age, which means when I started seeing him in 2004 (hardly the Dark Ages), we were both 38yo.
