There is limited information on the extent to which Rural Health Clinics (RHC) provide pediatric and pregnancy-related services to individuals enrolled in state Medicaid/CHIP programs. In part, this is because methods to identify RHC encounters within Medicaid claims data are outdated. This brief from the Maine Rural Health Research Center describes a methodology for identifying RHC encounters within the Medicaid claims data using Transformed Medicaid Statistical Information System (T-MSIS) Analytic Files.