The Building Partnerships to Advance Nutrition in California’s CalAIM Waiver case study series illuminates efforts in California to expand access to and coverage of nutrition interventions and other social services through Medicaid. By documenting the operational and logistical hurdles faced by community partnerships standing-up programs under this groundbreaking waiver, as well as solutions to these challenges, the series provides important takeaways for stakeholders in California – and nationwide – who are looking to address food access and nutrition, health-related social needs, and health equity through sustainable funding pathways in Medicaid and health care.