Two of San Diego County North Inland’s largest medical groups, Graybill and Arch Health, have joined forces to create the largest health network in the region, Palomar Health Medical Group. The affiliation is effective on December 1, 2020, and will expand access and improve the coordination of patient care. Patients will now have access to a broader network of providers who will be able to collaborate on the best care plan, while being able to continue seeing their same physicians in the same offices.