"Examples of pharmacies that billed high dollar amounts per compounded topical drug A pharmacy in Florida billed $1,752 per compounded topical drug, on average. In total, it billed Part D $1.1 million for compounded topicals. This pharmacy’s top prescriber was a family medicine physician located over 180 miles away from the pharmacy. Raising additional concern, the pharmacy billed Part D for compounded topical drugs for beneficiaries in 25 different States. A Texas pharmacy billed $2,447 per compounded topical drug, on average. In total, this pharmacy billed Part D $1.1 million for compounded topicals. Three-quarters of this pharmacy’s compounded topical drugs were prescribed by the same neurologist, and the majority contained diclofenac sodium 3% gel. "

quoted from report found here