Introduction: Mental health patients in states without private payer telehealth reimbursement policies before the public health emergency (PHE) may have experienced reduced access to telemental health (TMH). We estimate the association between private payer telehealth policy status in 2019 and the transition to TMH in 2020. Methods: Retrospective cohort study of privately insured individuals 2-64 years old with a mental health disorder and without TMH use in 2019. We examined new telemental use in 2020 by three categories of policy reimbursement status in 2019 (partial parity, full parity vs. no policy), overall (any telemental), and by modality (live video, audio-only, and online assessments) using logistic regression models clustered by state. Results: Among the 34,612 enrollees, 54.7% received TMH for the first time. Relative to no policy states, enrollees in partial or full parity states were equally likely to receive TMH in 2020. However, enrollees in states with a private payer telehealth policy were less likely to receive audio-only (partial parity: odds ratio [OR]: 0.59, 95% confidence interval [CI]: 0.39-0.90; full parity: OR: 0.38, 95% CI: 0.26-0.55), but more likely to receive online assessments (full parity: OR: 2.28, 95% CI: 1.4-4.59). Conclusions: Privately insured enrollees similarly transitioned to TMH across states suggesting a broad impact of the PHE policies on access to this care. The differences in audio-only and online assessments suggest that providers were possibly better prepared to implement TMH care via live video or patient portals in states with telehealth policies.
Keywords: policy; private reimbursement; public health emergency; telemedicine; telemental health.