Is It Normal To Receive a Discount for 2-3 Treatments at One Time?

It is common but not a "rule". Each surgeon will have their own policy. Often it is influenced not by the additional procedure itself but by the cost of additional OR and anesthesia time which is not under the surgeon's control.

It is common to discount the professional (physican) fees for multiple procedures performed at the same time. Many surgeons discount additional procedures 50% when more than one surgical procedure is performed under the same anesthetic. This is the practice in our office. However, not all surgeons offer these discounts. For example, if a facelift costs $4000 and a browlift is $3000, the total cost for both procedures would be $4000 for the facelift and only $1500 for the... more

Clearly this is a local and doctor to doctor question. In my office we offer %50 off second and third procedures done at the same time