Our Story
Bringing transparency and financial certainty to pharmacy benefits.
Two markets that never talked to each other
To make pharmacy benefits transparent, predictable and fair, by giving self-funded plans a guaranteed pharmacy cost and the data behind it.
Pharmacy pricing and stop-loss have always been priced separately. PBMs know the true cost of every drug; employers see only their invoice; stop-loss carriers load their rates for pharmacy volatility they can’t see.
WriteWise connects them. We reprice claims against validated PBMs, guarantee the pharmacy cost with our own capital, and let stop-loss carriers take the pharmacy load out of their rates. Headquartered in Boston, Massachusetts.
Our core values
Transparency
Clarity builds trust. Every guarantee, fee and rebate is disclosed and measurable.
Innovation
Technology is our foundation, from AI-assisted PBM audits to frontier predictive modeling.
Integrity
We stand behind every guarantee we write, and honor it for the full contract term.
The Minds Behind WriteWise
Underwriters, pharmacists, data scientists and engineers with one goal: trust and predictability in pharmacy benefits.




















Q1How does WriteWise guarantee pharmacy costs?+
We analyze a group’s pharmacy claims in MavRx and set a fixed per-member-per-month rate. If actual costs go over that rate, WriteWise covers the difference.
Q2Does WriteWise work with my existing PBM?+
Yes. We reprice your claims at the NDC level against the 20+ PBMs on our validated panel, including your current PBM, so you can see how it compares with every alternative. If your PBM isn’t on our panel, we can still quote your group using that PBM’s pricing, provided through a pricing supplement or an RFI response.
Q3What happens after I request a quote?+
An underwriter reviews the claims file and census, reprices the group across our PBM panel, and returns a guaranteed PMPM quote in MavRx.
Q4What data do I need to get started?+
It depends on the product. Some products require no claims data at all. Others need only aggregate claims reporting. Our guaranteed PMPM products need 12 months of member-level, NDC-level pharmacy claims along with a current member census. You can upload files directly in MavRx as standard CSV or Excel files, and the more recent your claims, the more accurate your quote.
Frequently Asked Questions
Bringing Financial Certainty to Rx
Lock in a predictable pharmacy cost with a guaranteed PMPM.