Medicare Advantage supplemental benefits represent a rapidly growing market. Millions of seniors rely on these benefits for services ranging from meal delivery and transportation to pest control and personal emergency response systems. The vendors who deliver these services face a unique billing challenge: they must verify eligibility, calculate billable days, and generate invoices for dozens of payers, each with different file formats, enrollment rules, and retroactive adjustment policies.

Most vendors handle this with spreadsheets, manual portal checks, and institutional knowledge that lives in the heads of a few key staff members. The result is predictable: missed billable days, compliance risk, staff burnout, and revenue that falls through the cracks. The same pattern recurs in Managed Medicaid supplemental benefits and capitated provider arrangements: different counterparties, identical structural problem.

Rendum exists to solve this problem. We build Eligibility Intelligence for the entire class of capitated, roster-driven healthcare billing relationships. Our platform ingests payer files, normalizes data across formats, calculates billable days using reviewed, versioned rules that produce the same decision every time, and generates payer-specific billing recommendations with complete audit trails. We start with Medicare Advantage supplemental benefit vendors because the eligibility complexity is hardest there. The same engine extends to Managed Medicaid, capitated provider arrangements, and plan-side reconciliation.

We believe that vendors and plans serving Medicare and Medicaid beneficiaries deserve billing infrastructure that meets the False Claims Act standard. Rendum brings that infrastructure to the capitated billing space.