The primary reason many practices do not accept Medicaid patients is largely attributed to low reimbursement rates. Surveys have shown that Medicaid reimbursements are significantly lower compared to commercial insurance payments for the same services. This financial disparity makes it challenging for practices to cover operational costs, leading them to prioritize patients with commercial insurance. While other factors like administrative burdens or state-specific regulations may also play a role, the low reimbursement rates remain the most cited barrier.