Provider directory research and insights
Independent analysis and original data on the integrity of the provider directories US health plans publish. Where a number is ours, the method behind it is published alongside it.
Original research
2026 Marketplace directory integrity report
Every provider directory published by issuers on the CMS federal Marketplace, checked against two dated federal files. Regenerated from the most recent completed run rather than frozen at publication.
What we do
Why provider-directory auditing needs to become continuous
The files are too large and change too often for periodic review alone, and the age of what we find is the proof. How a continuous audit runs, and why method changes and publication stay with people.
Original research
How long a wrong listing stays wrong
A count says how many listings contradict the federal record today. Age says whether anything is being fixed. Medians by federal source, the spread, and what duration does not prove.
Compliance
We found no published CMS 85% accuracy requirement
The figure is quoted as settled CMS policy across vendor compliance guides. It is not in the rule, the statute, or CMS's own implementation guide. What those documents say instead.
What we do
Why Rollcall Health exists
A directory listing is a promise. What it promises, why the promise breaks, which two facts can be settled from outside the plan, and what gets settled by contact instead.
For members
The directory says yes. The office says no.
Your plan lists a doctor as in network and the office says otherwise. Why that happens, what to do next, and how to report a listing that did not hold up.
If you think a number on any of these pages is wrong, write to findings@rollcall.health. We check it and publish the correction. How the check works