Debbie Zimmerman, MD

Corporate Chief Medical Officer, Lumeris and Essence Healthcare

As corporate chief medical officer for Essence Healthcare, Debbie Zimmerman, MD, is responsible for clinical quality, medical and pharmacy management, and physician practice transformation for Essence’s 4.5-Star or higher Medicare Advantage Prescription Drug (MAPD) health plan for six years in a row. In her role for Lumeris, Dr. Zimmerman builds the clinical strategy for the organization and manages consulting services, clients’ clinical initiatives, and the clinical content and analytics in the Lumeris Accountable Delivery System Platform (ADSP). In addition, Dr. Zimmerman provides oversight for the Accountable Delivery System Institute (ADSI), a program that educates prospects and clients on Lumeris’ proven population health management solutions and strategies for transitioning from volume- to value-based care. Dr. Zimmerman’s experience with new care delivery models, as well as provider and consumer engagement, has enabled clients to manage under value-based contracts by establishing Population Health Services Organizations (PHSOs). Dr. Zimmerman has more than 25 years of payer and physician experience and has served in medical leadership roles at health plans, including Cigna, Group Health Plan and Health Partners of the Midwest. Prior to joining Essence Healthcare, she was chief medical officer of Mercy Health Plans, a provider-sponsored plan owned by Sisters of Mercy. In addition, she is an accomplished entrepreneur, having co-founded a successful disease and complex case management firm. Dr. Zimmerman practiced internal medicine for 15 years. She’s licensed to practice in Missouri.