Fixed, budgetable pharmacy spend.
WriteWise guarantees a maximum per-member-per-month pharmacy cost for self-funded groups, so the plan knows its pharmacy spend before the year starts. Groups with stop-loss also typically see rates drop 15–25%.

Trusted by 20+ pharmacy benefit managers











Let’s Make Pharmacy Spend Predictable
PMPM Guarantee
- Cap
- Fixed PMPM
- Validation
- NDC level
- Reconciliation
- Year end
- Stop-loss
A fixed per-member-per-month cap on a group’s total annual pharmacy spend, backed by WriteWise capital. Every claim is validated at NDC level, monitored live and reconciled at year end.
The plan knows its maximum pharmacy cost before the year starts. Groups with stop-loss also typically see rates drop 15–25%.
Learn about the PMPM Guarantee →RxProtect
- Coverage
- Pharmacy-only stop-loss
- Carrier
- A-rated
- Data
- NDC claims, or monthly totals + top 25 drugs (9+ months)
Pharmacy-only stop-loss, backed by an A-rated carrier, for self-funded groups carving pharmacy out of a bundled ASO arrangement. It caps prescription risk separately from medical, with third-party validated claims auditing.
Learn about RxProtect →Essential & Optimal
- From
- For
- MEC, MVP and limited medical plans
- Formularies
- Pre-set
Pre-underwritten subscription pharmacy coverage at published monthly rates, from $5.95 PMPM. Built for small groups, MEC and MVP plans, and limited medical plans, with pre-set formularies.
See plans and pricing →Built for every part of the market
National consultancies
Add a guaranteed pharmacy cost to your next RFP.
Learn more → 02Brokers and benefit houses
Win the group with a lower stop-loss premium.
Learn more → 03Captives and MGAs
Quote it. Win it. Quote the next one.
Learn more → 04TPAs
Guaranteed pharmacy through the PBMs you already work with.
Learn more → 05PBMs
Win more groups without more selling.
Learn more →MavRx: Our proprietary platform built to bring financial certainty to Rx
MavRx is where pharmacy benefits are priced, protected and proven. Guarantees are backed by underwriting, risk is monitored live, and savings are measured, not modeled.
Driving to lowest net cost
Reprice claims against validated PBM pricing to find the true lowest net cost, beyond headline discounts.
Predictive analytics
Forecast utilization trend and verify PBM performance with models trained on 100M+ claims.
PMPM Guarantees
A guaranteed cap on pharmacy spend, with live monitoring and year-end reconciliation.
Unified marketplace
Brokers, consultants, PBMs and stop-loss partners quote and close the same group in one place.
PBM auditing
Surface hidden fees and contract terms in pharmacy benefit contracts in minutes.
Fast repricing
Reprice a group’s pharmacy benefit in minutes instead of weeks.
How It Works
Go from claims file to a guaranteed PMPM quote in three steps.
Upload your data
Upload recent pharmacy claims and a member census. We handle the cleaning and mapping.
Review your insights
See the group’s pharmacy spend breakdown in MavRx, then get your guaranteed PMPM quote.
Lock in your guarantee
Accept the quote and start coverage. We monitor the group live and reconcile at year end.
Breaking the Pharmacy Benefits Cycle
Smarter pricing, better underwriting and sustainable cost management. Upload a group and launch a PBM RFP through MavRx in minutes.
“WriteWise is changing the face of the PBM buying experience. When you consider pinpoint analytical data shared in a digestible manner, to the integrated pharmacy expense carve out options, to the curated collection of PBM partners; I see this product as one every TPA and broker should have in their toolbox. Over the years, I have seen a lot of game changing technologies, and I fully expect this to be one of them.”

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.