Background: School-based health centers (SBHCs) offer primary and preventive health care for children and adolescents. Using nationally representative data, we aimed to examine which child and family characteristics are associated with using school-based health care providers as the primary source of health care, and whether care received from these providers met the criteria for a medical home. Methods: Using data from the 2016-2018 National Survey of Children's Health (NSCH), we analyzed children's usual source of care (school-based provider, doctor's office or clinic, other location, or none), and whether they received care meeting medical home criteria. Results: Based on a sample of 64,710 children, 0.5% identified school-based providers as their primary source of health care. Children who were older, uninsured, or living in the Northeast were significantly more likely to report school-based providers as their usual source of care. Children whose usual source of care was a school-based provider were less likely to receive care meeting medical home criteria than children who usually received care at a doctor's office. Conclusions: While SBHCs improve access to care, our findings indicate potential challenges with establishing a medical home for children who usually receive health care from a school-based provider.