Assertion Partly supported AI assessment confidence: 88% certainty 4/5 debate potential 1/5

Basu: Waymark improved Medicaid care quality metrics by 11 percentiles

Sanjay Basu · Scaling Medicaid Innovation with Rajaie Batniji, Sanjay Basu, and Afia Asamoah · Mar 20, 2025 · at 15:07

Sanjay Basu is co-founder of Waymark. He explains the company's real-world clinical study results published in NEJM Catalyst.

0:00 / 0:27exact quote · 27.5s

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“In addition to reducing emergency room visits by about a quarter versus that control group, we achieved a lot of improvement in access and quality outcomes. So nationally, they're measured by this Health Effectiveness Data Info System, or HEDIS, which a lot of plans, providers, and others are measuring their care quality against. Do people have access to care? Are they getting the right prescriptions for their medications and so on? Are they getting cancer screenings, right vaccinations? And so we improved those 11 percentiles”

quote is from the automated transcript, cleaned for reading: filler sounds and stutters are removed, nothing is rephrased. names can be misheard (the analysis reads context, assessments check outside sources). how →

The claim, plainly

Waymark's intervention improved HEDIS healthcare quality and access metrics for Medicaid members by 11 percentiles compared to a control group.

a quote alone can be ambiguous, so this restates it with the references and context of the conversation around it resolved. AI-written; the tape below the player is the source.

Assessment

The claim is substantially accurate but slightly imprecise. In October 2024, NEJM Catalyst published a study co-authored by Sanjay Basu ('Supporting Rising-Risk Medicaid Patients Through Early Intervention') evaluating Waymark's Medicaid intervention across 64,278 members. The study found an average improvement of 11.8 percentage points (frequently reported by Waymark as 11.8 percentiles) across 7 of 9 evaluated HEDIS quality measures. Because 11 is a minor round approximation of the published 11.8 figure, and because the study's matched control group comparison specifically measured the ~23% reduction in emergency room/hospital visits while the HEDIS metric improvement measured care gap closures over the implementation period, the claim is rated partially_true under the guidelines for offhand estimates.

NEJM Catalyst study (published Oct 16, 2024) titled 'Supporting Rising-Risk Medicaid Patients Through Early Intervention' showed Waymark's intervention improved 7 of 9 HEDIS measures by an average of 11.8 percentage points.
Waymark's 2024 and 2025 public disclosures cited the NEJM Catalyst findings as an average improvement of +11.8 percentiles in HEDIS quality gap closures.
The study's matched control group difference-in-differences analysis demonstrated a 22.9% reduction in emergency department and hospital utilization.

Checked against

[1] mssm.edu [2] eurekalert.org [3] medcitynews.com [4] website-files.com [5] eurekalert.org [6] waymarkcare.com [7] waymarkcare.com [8] nih.gov

"Waymark" "11 percentiles" OR "11.8" HEDIS control group "Supporting Rising-Risk Medicaid Patients Through Early Intervention" "HEDIS" "percentiles" OR "percentage points" Waymark study HEDIS quality access metrics control group Waymark HEDIS 11 percentiles Sanjay Basu "NEJM Catalyst" "Waymark" "11.8" OR "11 percentiles" HEDIS

assessed as of 2026-07-31

This assessment is an AI reading of a public statement, made against the cited references with the confidence shown. It can be wrong. The quote, the tape and the references are all on this page; if something is off, use report an error below. full disclaimer →

Mentioned

HEDIS Waymark

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