Double dipping is never good, but there are different situations to every one's case. I, for one, use only 1 US OP and no IOP's at all. My PCP, Neurologist, and PSY doctors take care of my other needs, and I do not need any other "sources". My suggestion is to find 1 US OP that will fufill all of your needs. Double dipping is getting the same med from 2 or more doctors, be it online or in person. Some people, however, use different OP's for different meds. Most use US OP's for pain meds like Hydrocodone, but use IOP's for benzos or milder pain medications. Those who are blatently lying and getting pain meds from one or more US OP are just playing Russian Roulette with themselves and risk trouble. They are what give pain patients and online pharmacies a bad reputation and make meds harder to obtain.