CMS ships an App Store for Medicare 📱, Joyful Health banks $22M for denial intelligence 💸
The infrastructure that lets you ship is racing ahead of the infrastructure that lets you ship safely.
CMS Just Shipped an App Store for Medicare — and 700 Companies Already Signed On
CMS unveiled the first production rollout of the Medicare App Library this week — a centralized, vetted directory of digital health apps that patients can connect directly to their Medicare data. More than 700 companies have signed onto the voluntary Health Tech Ecosystem initiative, and 50+ apps are either already listed or in the vetting pipeline. Priorities announced: conversational AI, chronic disease management, and eliminating paperwork. Welldoc, Noom, January AI, Flexpa, ZocDoc, b.well, Xealth, Polygon Health, and HealthEx are in the first wave.
The thing to notice: for ten years, FHIR has been plumbing. You fought with it to get a lab value out of Epic. Now CMS is standing up the retail surface on top of that plumbing. Distribution is the thing nobody built for clinician-made apps, and the distribution path just got cut.
😤 Haters
“700 companies signed a pledge. How many apps actually work when grandma tries to connect them?” Probably most will fail the real-world test. The “last mile” of consumer adoption is the thing nobody has cracked, and the vet-and-list approach doesn’t solve it. If the library becomes a directory of dead integrations it’s worse than nothing. But 50 already in the pipeline is not a pledge — it’s shipped code.
“This is just CMS taking credit for work Epic and Apple already did.” Partially true. The networks underneath — TEFCA, MyHealtheData, the Apple Health integrations — were built by other people. What CMS is adding is a discovery surface patients can actually find. That’s the missing piece. You can have the cleanest API in the world and if a 72-year-old can’t find your app, the API is a museum exhibit.
“Voluntary means nothing until there’s a payment code attached.” Right — and there isn’t one yet. But the CPT code for AI cardiac calcium detection landed last week. The direction is clear. Voluntary now, reimbursed soon, and the companies in the first wave get to shape what “shaped by” means.
💡 80/20: The distribution bottleneck for clinician-built tools is starting to lift. If you have been sitting on a tool that could serve a Medicare beneficiary and you thought you’d never find them, re-read that sentence. Try: open the participating-company list, find the nearest non-competitor, and ask how they got vetted. The list of people who know is still small.
→ Full write-up
Joyful Health Raises $22M to Fight Denials — and the RCM AI Wave Keeps Landing
Joyful Health closed a $17M Series A led by CRV (total funding to $22M) to build what it calls “denial intelligence” — claim-level investigation, automated appeal workflows, and recovery across fragmented RCM systems. The company claims to have processed $1.4B in transactions with a 95% recovery rate. Vituity’s investment arm and Commure founder Diede van Lamoen’s Go Global are on the cap table.
😤 Haters
“RCM denial automation is a crowded graveyard. Cedar, Candid, Waystar, Alpha Health, now Joyful — what’s new?” The actual differentiator claimed here is investigation at the claim level, not just pattern-based auto-appeal. Most denial tools play the volume game. If Joyful is genuinely surfacing the payer-specific reason behind a denial rather than regex-matching it, that’s a real wedge. The 95% recovery rate either is or isn’t true — ask for a cohort definition before you believe the number.
“Insurers will just evolve their denial patterns faster than the AI can learn.” Probably, eventually. But the payers’ denial policies move on a quarterly cycle. The model retrains overnight.
💡 80/20: Denial intelligence is one of the cleanest AI-to-dollar loops in all of healthcare — the feedback is fast, the label is obvious (paid/not-paid), and the money is real.
→ Full write-up
DOJ Moves to Bankrupt Zealthy — and the Kyle Robertson Arc Keeps Writing Itself
The Justice Department filed for an asset freeze and receivership against telehealth startup Zealthy and its CEO Kyle Robertson. Allegations include using physicians’ names and DEA numbers to fill thousands of prescriptions those physicians never saw, blocking cancellations, and routing payments through shell companies after losing LegitScript. Robertson was fired from Cerebral in 2022 after a similar Adderall distribution scandal. The DOJ says the remedies it’s seeking may bankrupt the company, and preservation of assets is now the live question.
😤 Haters
“This isn’t about tech — it’s one bad actor.” It’s one bad actor, twice. That’s not noise, that’s a pattern — and the pattern is that the controlled-substance + DTC telehealth stack has structural failure modes that good intentions don’t fix. Every clinician-builder working in that space needs to know what due diligence on a medical director looks like, because “we hired a CMO” is not due diligence.
“This kills telehealth prescribing.” It doesn’t kill it — it kills the part of it that was always going to die. Legitimate telehealth for controlled substances with proper clinician oversight is still a real thing. What’s dying is the growth-hacked, SEO-fronted, physician-name-as-rubber-stamp version. Good.
→ Full write-up
🛠️ From the Workbench
Worki — $2.75M to Map Hospital Workforce at the Task Level
Worki raised $2.75M pre-seed led by Redesign Health and Healthliant Ventures (Tanner Health’s venture arm). The pitch: instead of deploying AI agents against vague job titles, they map the task-level workflows across Workday, UKG, Oracle HR, and ServiceNow to find the places where agents can safely slot in. Deployed at Tanner Health and BJC Healthcare. CTO is ex-Uber/Airbnb AI lead.
😤 Haters
“Another ‘AI for operations’ startup with a vague pitch.” The pitch is actually less vague than most — they are explicitly mapping the before-automation workflow first, then deciding what the agents do. That’s the right order of operations. The wrong order is “here is our agent, now find a workflow for it,” which is 80% of this category.
“Redesign Health companies are studio-built and churn through CEOs.” Also often true. Redesign’s track record is mixed. But Tanner Health co-investing through its venture arm and also running it in production is the kind of signal a pure studio bet usually lacks.
💡 80/20: Before building any agent for a clinical or administrative workflow, map the task-level decomposition first. Who does what, in what system, for how long, producing what artifact. Most agent projects fail here. Try: pick one workflow you want to automate. Write the 15-step decomposition. If you can’t, the agent can’t either.
→ Full write-up
🧰 Builder’s Tip
Tool Spotlight: Synthea — The Synthetic Patient Generator You Should Have Already Installed
If you want to prototype anything on FHIR data without signing a BAA, Synthea is the answer. MITRE-maintained, open source, statistically realistic across 90+ disease modules, outputs FHIR R4 Bundles, C-CDA, or CSV.
Three commands:
git clone https://github.com/synthetichealth/synthea.git
cd synthea
./run_synthea -p 100
You now have 100 synthetic patients with full longitudinal records in output/fhir/. Pipe them into Medplum, your own FHIR server, or a flat DuckDB table. Build the rough prototype on synthetic data. Negotiate the BAA after you have something to show. Nobody builds v0 on real PHI.
What are you building this week? Reply and tell me — I read every one.
— Kevin