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Daniel Castillo, MD

CEO, Midwest Region

Daniel Castillo, MD

Daniel Castillo, MD, MBA, joined Optum in 2023 and serves as the chief executive officer of the Midwest region for Optum Health. In this role, Dr. Castillo leads all aspects of executing the growth strategy across 12 states, utilizing the full suite of Optum assets to partner with providers, patients and payers to grow value-based care while improving the overall health care experience for all stakeholders.

Prior to joining Optum, Dr. Castillo was group president and chief medical officer at Matrix Medical Network, a private-equity-owned national provider organization focused on enabling value-based care in and around the home and alternative care settings. He has held executive leadership positions at Envision Healthcare and The Joint Commission. Dr. Castillo also co-founded EmVenio Research, a clinical trials company focused on improving equity in clinical research.

Dr. Castillo is an emergency medicine physician, still working clinical shifts at Northwestern Medicine in Chicago. He earned his MD from The Medical College of Wisconsin and his MBA from The University of Chicago Booth School of Business.