I use my GP as the example. It's a fun tale.
When he was in a partnership with 4 other doctors, he started with a paper system. They had two receptionists, and three clerk/billers. I used to help him out with some tech stuff.
They implemented an EMR prior to the Medicare mandate, with an ROI driven by dropping 2.5 FTE. They ended up dropping the clerks and hiring IT expertise at a cost 50% higher than the clerks.
Medicare mandate came, and the EMR didn't meet requirements and had to be replaced. They joined a larger physician group, and paid for 0.2 IT FTE. But they had to hire two PAs and a NP to drive revenue and now have 6 clerical people. (+1 from paper)
Now they were acqui-hired by a sprawling medical network. Their cost center became a dumping ground for redundant hospital staff and they have 10 non-medical people (+5 from paper-based, independent practice). Now they run two EMRs and are transitioning to a third. They lost the ability to collect money at the counter, and now bill for every co-pay and lab. (My wife received a paper bill for $0.78 for a pregnancy test via postal mail)
In short, between bad policy, government encouragement of cartel behavior, and general stupid big company bullshit my doctor went from a progressive medical practice with talented doctors and medical staff to a bloated sales funnel for unnecessary specialist care over the course of about 15 years.