What a clinic owner can and cannot plan up front
You can plan the structure: which SKUs drive volume, expected refill cadence, and the patient price points your market supports. What you cannot plan up front with Scripts is the COGS number itself, because exclusive portal rates are not accessible pre-onboarding. That gap matters most for high-volume GLP-1 programs, where a small per-vial difference multiplied across hundreds of monthly refills swings the bottom line. Before margin depends on a Scripts portal rate, ask for written per-vial cost on your top three SKUs once you are inside and confirm whether the rate is fixed or subject to change as Scripts's network agreements renegotiate.
Also clarify how ancillary costs hit the P&L. Scripts's 'one invoice' promise is an ops benefit, but shipping, payment processing, or a platform fee billed through that invoice are still costs. If those sit separately from the portal drug rate, the portal number understates your true landed cost. Build your margin model on the all-in number per vial delivered, not the headline portal rate, so your patient pricing protects the spread you actually need.