Blog

Compliance and engineering notes for U.S. health plans.

Short, opinionated, and current. We write about the regulatory pressure plans actually live under, and the engineering work it takes to answer it.

Compliance·7 min read

Your provider directory goes public on Medicare Plan Finder in 2027

From plan year 2027 CMS publishes MA provider directories on Medicare Plan Finder, and from 2029 your accuracy score is published alongside them. What changes when directory quality becomes a shopping signal — and how to be ready.

May 26, 2026Read

Compliance·8 min read

The CMS provider-directory deadline stack, 2026 to 2029

Four separate CMS changes — 90-day verification, the FHIR Provider Directory API, public Plan Finder directories, and published accuracy scores — land between 2026 and 2029. Here is the timeline in plain language, with what each one asks of a plan.

May 20, 2026Read

Compliance·6 min read

The No Surprises Act's directory rules, and what slipping them costs

Beyond CMS, the No Surprises Act puts its own clock on health-plan directories: verify every 90 days, update within two business days, answer a member's network question within one. What the rules say, and the penalty exposure when a plan misses.

May 8, 2026Read

Compliance·9 min read

A practical guide to 42 CFR §422.116 network adequacy filing

What CMS actually checks, where plans typically fail, and how to build a HSD table that survives an audit — without padding the network.

Apr 22, 2026Read

Compliance·7 min read

CMS-0057-F: a Provider Directory API checklist for plans

The seven FHIR Plan-Net resources, the four endpoints regulators actually probe, and what to test before a CMS reviewer points it out.

Mar 14, 2026Read