Project · Case study
About PostAcuteTools
A free, browser-based Medicare reimbursement toolkit for post-acute care — and a portfolio piece showing how healthcare domain expertise, data discipline, and AI-assisted development come together in a shipped product.
FY2025–2026 reflect published CMS Final Rules; FY2027 figures are from proposed rules and are labeled as proposed in the tools.
What it is
A free, browser-based toolkit for Medicare post-acute reimbursement. The audience is revenue-cycle staff, MDS / OASIS coordinators, and billers who need to model payment quickly and accurately — no login, no install, nothing to buy.
Scope
30+ tools across nine care & revenue settings: skilled nursing (PDPM), home health (PDGM), hospice, Part B therapy, IRF, LTCH, claims, remittance, and finance — plus diagnosis lookups, plain-English guides, and operational workflows. Headliners include the PDPM / PDGM calculators, full CBSA wage-index localization, HIPPS decoders, and the 835 / ERA + CARC / RARC remittance tools.
Architecture
A static site on Netlify with client-side calculation engines — including a variable-per-diem PDPM engine and 468-area wage-index localization that run entirely in the browser. The design is deliberately database-free: there is no backend and no server-side state, so nothing a user enters is stored or transmitted — there is no PHI risk by design. (The only data collected anywhere is an email address on the opt-in subscribe form.)
Data & accuracy
Rate and case-mix data come from published CMS Final Rules (FY2025–2026 final; FY2027 proposed), with wage-index tables covering 468 CBSAs. Every figure carries its source and version on-page, and outputs are verified against the official CMS values with the same data-validation discipline used in enterprise UAT.
AI-assisted development
The toolkit was built with AI-assisted development: the healthcare domain knowledge, payment logic, and validation were supplied by the creator, with AI tooling handling much of the implementation from concept to deployment. Every output is checked against the published CMS figures before it ships.
About the creator
Why I built PostAcuteTools
I've spent the last few years on the payments and data side of healthcare SaaS — most recently at Netsmart, supporting the software that post-acute providers (home health, hospice, and skilled nursing) use to get paid. A lot of that work was reimbursement and remittance: PDPM, PDGM, hospice rates, and the 835 / CARC / RARC codes that determine what a provider actually receives.
I kept running into the same gap — the people doing post-acute billing didn't have a free, trustworthy way to model reimbursement or make sense of those remittance codes. So I built one. The 835 / ERA decoder, the CARC / RARC lookup, and the remittance tools here come straight out of the work I did every day.
I built the toolkit myself using AI-assisted development — bringing the healthcare domain knowledge and checking each output against the published CMS figures. It's deliberately database-free: everything runs in your browser and nothing you enter is stored or sent anywhere, so there's no PHI to put at risk.
I'm Joshua Camerer — I work at the intersection of healthcare domain knowledge, SQL and data work, and AI-assisted development. I'm always happy to connect; the best way to reach me is on LinkedIn.
Open to new opportunities in healthcare SaaS — technical support, implementation, and analyst roles.
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