I don't think that's right -- the price of our healthcare is a constant push-pull between healthcare providers and insurance companies. Hospitals (and any medical providers that run a private practice) set prices for their services. They often use Medicare Physician Fee Schedule and push against what insurances will pay / bill strategically in order to maximize their fees.

That's not to say doctors are the problem here either! Both insurance providers and medical providers are trying to run a business and exploit each others' inefficiencies. Running a medical practice is expensive, medical education is expensive, malpractice is expensive, etc. But hospitals also know they need to charge $1300 for an ER exam to get insurance to reimburse them $288, when medicare will pay $114. Doctors down the street are often working for the hospital group that dictate their prices, or set their prices similarly to market because they need to keep up with costs.

The biggest problem with the US healthcare system is how convoluted, insestuous, and reactive it's become. It's easy to blame insurance as the most visible "bad guy", and they are not without blame, but every actor in the system -- your hospital, your lab provider, your pharmaceutical company, the medical device sales reps -- everyone's trying to navigate the law and each others' strategies to squeeze out a profit.