I speak from experience. Blue Cross has not argued or denied any of our doctors’ requests since the second time I used that method.
Had a specialist tell my wife she needed a shoulder replacement. Insurance wanted her to do physical therapy. I was livid. “I want the license number of the doctor on your end who is deciding that physical therapy is going to some how magically fix torn rotator cuff tendons. Telling our medical specialist that physical therapy is required is a medical decision that contradicts their diagnosis that it needs replaced. If we follow your recommendation and it fails, I need the name and license number of who to go after for making that decision. Shielding this professional, and I use that term loosely, indicates that you’re willing to assume all the liability when “physical therapy” causes more pain and damage.”
Then I’m full of shit and my wife’s reverse shoulder joint is a figment of our collective imaginations.