SDN Members don't see this ad. (About Ads) I intend to prescribe ibuprofen ( up to 800 mg ), amoxicillin, and clindamycin. I'm in NYC. Do I need a DEA number when prescribing any of this? ( I can't afford a DEA number at this time ) And what about prescription pads? Aren't the offices supposed to provide you with them? Also, what if you want to phone in your prescription to a local pharmacy? Do you require anything prior to that phone call?