"There are enormous ethical and legal concerns," said Lawrence Gostin, a Georgetown University law professor who specializes in public health. "Patients across America should be very worried that their medical records are going to be used in ways that harm them and their families."

The headline is an early paragraph in -  https://www.pbs.org/newshour/politics/white-house-launching-health-tracking-system-with-big-techs-help

Federal help, tracking your very own med records nationwide, or as Reagan said, 

"I'm from the federal government and I'm here to help you." 

Or not? They say it will be opt-in, whatever they mean by that, and who gets to see what if you're opting in or opting out is fuzzed around. You might think it over.

Is this done in other nations? How has it worked there, if it's done anywhere? 

A federalized data bank of physician - patient interaction history sounds suspect. 

UPDATE: Is this or this relevant? Isn't this we-aggregate-your-data off point on questions of medicare for all? Setting priorities before setting funding and implementation seems to have been done; data aggregation over fixing cost and delivery bottlenecks we all have been facing. Seems wholly inadequate and ass-backward to me. I wonder why they choose to move as they are doing.