I can't "confirm" it as such, but it has been stated since the start that "all the prescriptions" in the HardRock suite were in HKS's name.
Howiesoever, I haven't heard any one person actually state that - unless someone did tonight on GVS.
Someone did say it on Gretas show tonite. I've had a couple people confirm that already. But i can't recall who said it. Mighta been Greta herself.