Billing automation for the vendors that serve Medicare beneficiaries
Make Medicare Advantage supplemental benefit billing accurate, automated, and auditable
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.
Rendum exists to solve this problem. We build eligibility automation software purpose-built for Medicare Advantage supplemental benefit vendors. Our platform ingests payer files, normalizes data across formats, calculates billable days using deterministic rules (never AI), and generates payer-specific invoices with complete audit trails.
We believe that the vendors serving Medicare beneficiaries deserve the same quality of billing infrastructure that hospitals and health systems have had for decades. Rendum brings that infrastructure to the supplemental benefit space.
What we believe
Determinism Over Convenience
We choose explicit, auditable rules over black-box shortcuts. Every calculation in Rendum is reproducible and traceable. When healthcare billing accuracy is at stake, there is no room for probabilistic outputs.
Transparency by Default
Our pricing is public. Our architecture is documented. Our audit trails are complete. We believe vendors and payers deserve full visibility into how their billing is calculated, and we build accordingly.
Compliance is Not Optional
HIPAA compliance and SOC 2 attestation are not features we bolt on after launch. They are foundational requirements that inform every architectural decision, every code review, and every deployment.