WriteWise is the infrastructure layer that pharmacy benefit management has been missing. It's a PMPM guarantee platform — meaning every PBM on the platform has to submit their full claims universe, which WriteWise models using AI and actuarial science to set a guaranteed fixed per-member-per-month cost.
If actual pharmacy costs run over that guaranteed rate, the PBM covers the difference. No exceptions. No 30 pages of fine print. This is a real financial guarantee backed by underwriting — not a discount promise on paper.
The engine behind it is MavRx: WriteWise's proprietary platform built at the intersection of actuarial science, AI/machine learning, and deep-domain PBM expertise. MavRx has ingested over 100 million pharmacy claims to create the predictive models that make cost certainty possible.
Traditional PBM procurement forces PBMs to compete on projected discounts and rebates that don't reflect what you'll actually spend. WriteWise eliminates that by forcing PBMs to compete on guaranteed net cost — the only number that matters.
A WriteWise PMPM Guarantee unlocks 15–20% aggregate stop-loss rate decrements. Because pharmacy cost volatility is the biggest wildcard in stop-loss underwriting, capping it with a real guarantee changes the actuarial math — and that savings flows directly to the plan.
Every PBM on the platform undergoes full data submission and modeling. The guarantee is underwriting-backed — if costs exceed the cap, the PBM pays the difference. This creates alignment between PBM, client, and member that the industry has never had.
WriteWise has validated over 20 pharmacy benefit managers through MavRx. These aren't soft endorsements — they're data-submitted, performance-modeled, guarantee-capable PBM partners. That's the validated pool Prompt Rx commercializes.
From the moment a claims file is uploaded, MavRx delivers a guaranteed PMPM quote within 24 hours. That's the speed at which Prompt Rx builds proposals that competitors can't match — because they don't have the platform.
WriteWise currently covers 30,000+ insured Americans and has raised $17M from GreatPoint Ventures, ManchesterStory, and Altai Ventures. This is capitalized market infrastructure — not a startup experiment.
WriteWise validation is the credential. But a credential without commercialization doesn't generate revenue — or market position. That's the gap Prompt Rx was built to fill.
As the exclusive Strategic General Agent for WriteWise, Prompt Rx is the only firm authorized to deploy WriteWise-validated PBMs into the market with the full stack: PMPM guarantee structuring, stop-loss panel alignment, and disciplined distribution strategy under one engagement.
For PBMs: your WriteWise validation score is only as valuable as the commercial infrastructure built around it. Prompt Rx builds that infrastructure.
For TPAs, brokers, and consultants: you now have access to PMPM-guaranteed proposals — not just discounted rate sheets. That's a fundamentally different value proposition for your clients, and one that competitors without WriteWise access cannot replicate.
For stop-loss carriers and MGUs: WriteWise validation means the pharmacy volatility you've been underwriting blind is now capped with a real guarantee. That's actuarially significant, and Prompt Rx is the distribution channel that makes it accessible.
Pharmacy claims in the MavRx training dataset — powering predictive cost modeling that has never existed in PBM before.
Validated PBM partners integrated into the WriteWise platform — the curated pool that Prompt Rx deploys into the market.
Stop-loss aggregate rate decrements available when a WriteWise PMPM Guarantee is in place — a direct financial benefit to plan sponsors.
Guaranteed PMPM quote turnaround from claims upload to guaranteed rate — enabling Prompt Rx to build proposals at a speed the market has never seen.
The window to be a first mover on WriteWise validation is open — but it won't stay that way. PBMs and TPAs that build their commercialization infrastructure now will own the market position. Those who wait will be defending against those who didn't.
