P3 Health Partners Inc. has announced the formation of a joint venture with Commonwealth Primary Care ACO to create a Management Services Organization (MSO) focused on expanding value-based care and supporting primary care physicians across Arizona, California, Nevada, Oregon, and North Carolina. Under the agreement, P3 will serve as the majority owner, while both entities remain independent but operate under a unified structure. The partnership aims to strengthen operational efficiency, enhance physician support, and expand P3's presence into Maricopa County, Arizona. The joint venture will be governed by a joint board, with teams from both organizations working together to streamline operations and improve care for patients.