You know how that works out, don't you?
There is no external RF (radio frequency), infrared, ultrasonic, or laser procedure (or internal laser, ultrasonic, etc. operation) that can adequately tighten loose skin that requires a tummy tuck. If you don't have loose skin, then these procedures "work" because they are not necessary!
If you do have loose skin, you probably also have loose or stretched muscular fascia, and rectus sheath plication (commonly called "muscle repair") is PART of a properly-performed tummy tuck procedure in the majority of cases. How can THAT be done without an incision? (ANSWER: It can't!)
This is not even "Too good to be true!" This is marketing hogwash to get prospective patients to see these doctors so they can sell you on something else, or take your money for a lipo procedure that leaves you with all the loose skin you started with (plus a little scar tissue that changes things a bit, and not usually in a good way!)
Go see this "surgeon" and then complain to the state medical board if applicable! But please don't waste your money, time, or undergo unnecessary risk for this brand of snake oil!