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Audits flag parity documentation gaps and processing errors; CTI urges further review and an off‑cycle audit for WellPoint
Summary
CTI’s preliminary mental‑health parity audit identified potential non‑quantitative treatment‑limitation (NQTL) and co‑payment discrepancies across GIC plans; a separate claims audit found operational and payment errors at WellPoint, prompting recommendations for focused carrier analysis, contract remedies, and an off‑cycle audit.
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CTI presented preliminary findings from two audits of Group Insurance Commission (GIC) health plans, identifying potential mental‑health parity documentation issues across carriers and payment errors that prompted a recommendation for additional oversight of WellPoint.
Marie Pollock, director of medical audits at CTI, told commissioners the MHPAEA (Mental Health Parity and Addiction Equity Act) comparative analyses for fiscal year 2024 flagged common concerns across the four plans. ‘‘We identified co‑payment differences for outpatient mental‑health and substance‑use tiers and several quantitative limits—nutritional counseling, physical therapy, occupational therapy, and smoking‑cessation visits—that merit further review,’’ Pollock said.
Pollock noted four recurring NQTL areas that the GIC should examine further: concurrent review, network reimbursement, network adequacy and coverage scope. She cautioned the results are preliminary and that CTI and CXC continue to work with carriers to determine whether findings reflect plan practices or artifacts of plan documentation.
On claims accuracy, CTI audited Health New England and WellPoint for FY2024. Health New England’s 200‑claim random sample showed 100% accuracy in the sample; targeted reviews did reveal issues (duplicate claims, missed third‑party recovery opportunities, incorrect coding) that staff will investigate further. By contrast, WellPoint’s random sample produced a 98.42% financial accuracy rate (a 1.58% error rate) and additional errors surfaced in targeted reviews and electronic screening, including payments for excluded services and duplicate or misrouted payments.
‘‘In our random sample audit of 200 claims, the financial accuracy rate was at 98.42,’’ Pollock said, summarizing the WellPoint result and pointing to a mix of automated and manual adjudication errors. CTI identified overpayments totaling thousands of dollars in the sample and requested additional operational data from WellPoint on provider credentialing and network adequacy.
CTI recommended carriers perform focused analyses of the provided claim detail, run carrier impact reports, and correct affected claims. For systemic problems, CTI suggested negotiating contract language that would require carriers to compensate the GIC or its members for errors ‘‘that were identified at no fault of the GIC or its members.’’ The audit team also recommended an off‑cycle audit of WellPoint in FY2025, paid for by the carrier, to verify remediation of systemic issues.
Commissioners asked CTI to extrapolate sample errors to population‑level estimates so the commission can better understand potential fiscal impacts. Staff and CTI agreed to return with follow‑up analysis and remediation plans at the December meeting.
What’s next: CTI and CXC will continue discussions with carriers, complete the parity and claims reviews, and present updated final reports and impact estimates to the GIC in December. The commission also discussed the contractual performance guarantees that could be enforced if carriers continue to underperform.
Sources: Presentation and Q&A with Marie Pollock, CTI; GIC staff updates.

