Association of Continuous Glucose Monitor Receipt and Diabetes Care Provider Type: A Cohort Study of West Virginia Medicaid Beneficiaries With Type 1 Diabetes.

OBJECTIVE

To compare the prevalence of West Virginia Medicaid (WVM) beneficiaries with type 1 diabetes (T1D) with a WVM administrative claim for continuous glucose monitoring (CGM) supplies by whether they received medical care from a board-certified endocrinologist.

METHODS

A total of 1494 WVM beneficiaries aged 20-64 with T1D were retrospectively followed from May 2018 to April 2020. The sample consisted of 2 groups: those receiving medical care from board-certified endocrinologists and those receiving medical care from other providers. CGM prevalence is compared before and after WVM started providing insurance coverage for beneficiaries with T1D to use CGM systems in May 2019 using linear regression with and without adjustments for patient characteristics.

RESULTS

Thirty-five percent of beneficiaries received care from a board-certified endocrinologist at any point during the sample period. Post-May 2019, the prevalence of WVM administrative claims for CGM supplies was significantly higher among beneficiaries receiving care from an endocrinologist compared with other providers.

CONCLUSIONS

Receiving diabetes care from a board-certified endocrinologist is positively associated with having administrative claims for CGM supplies.