The fax machine's days in American healthcare are numbered —and this time, it's official.
CMS's new Claims Attachments rule phases out paper and fax as the primary methods for submitting claims-related documentation, with an estimated industry savings of $782 million per year. The rule covers supplemental evidence that directly supports the Quality Bonus Program andSTARS performance — the medical records, clinical notes, lab results, and screening documentation that providers have long been required to produce in response to health plan requests.
The agency described the problem plainly: providers have historically relied on "outdated manual methods to submit additional claims-related documentation requested by health plans, including medical records, X-rays, clinical notes, telemedicine visit documentation, and laboratory results — all of which cause delays and unnecessary costs."
That description will be familiar to anyone who has worked in a primary care practice or managed a quality program for a risk-bearing entity.
The Scale of the Problem
Consider what happens today when a provider needs to prove a colonoscopy was completed. Or a mammogram. Or a cervical cancer screening. Or a retinal eye exam for a diabetic patient.
The evidence exists — in an EHR, in a specialist's system, in a report filed somewhere in a practice's document management workflow. Getting it to the health plan requires locating the documentation, printing or exporting it, and faxing it — one measure, one patient, one fax at a time.
At the health plan end, that fax joins a queue for manual review, manual abstraction, and audit. Across thousands of providers and millions of members, the volume is staggering. And the error rate, given the manual handling on both sides, is significant.
This is not a niche inefficiency. It sits at the center of how quality performance is measured and how STARS ratings are determined. Plans that score poorly on STARS lose revenue. Providers that fail to submit documentation see quality gaps that don't close. Everyone loses.
What the Rule Changes
The Claims Attachments rule mandates a transition to electronic, standardized submission for supplemental evidence. It removes the legal and operational permission structure that has allowed fax-based workflows to persist and sets the expectation that documentation will move digitally between providers and payers.
The deadline and phased implementation schedule set a cleardirection of travel. For health plans, ACOs, and IPAs still operating on manual supplemental evidence workflows, the compliance clock is running.
The Deeper Opportunity
The fax mandate is the floor, not the ceiling. Moving from fax to email or basic electronic file transfer solves the transmission problem but not the underlying challenge: collecting the right evidence, from the right source, in a format that satisfies the specific requirements of each quality measure, and delivering it with the provenance data needed for audit.
That workflow — from collection to extraction to standardization to submission — has been broken at both ends for years. Digitizing the transmission method without addressing the surrounding process creates a faster version of the same fundamental problem.
How Kennar Health Approaches Supplemental Evidence
Kennar Health was built to address the full supplemental evidence pipeline. The platform aggregates clinical evidence across practices,EHRs, and disparate systems, extracts the specific documentation that satisfieseach quality measure, associates provenance data — who delivered the care, when, where, and how it was documented — and standardizes output into the formats required by payers and NCQA for HEDIS reporting.
For at-risk providers, IPAs, ACOs, and CINs, this means relief from the collection and submission burden. For health plans, it means audit-ready, validated supplemental data at scale — not a pile of faxes thatneed to be processed by a manual review team.
CMS's rule is moving the industry forward. For organizations ready to move beyond compliance and into genuine operational efficiency, the infrastructure to do it exists now.
Kennar Health supports health plans, ACOs, IPAs, andat-risk provider groups with supplemental evidence collection, standardization, and submission at scale. To learn more or start a conversation, visit kennarhealth.com.
