Can Primary Care Become Healthcare's Operating System? Tesha Simpson, Millennium Physician Group

How Millennium Physician Group uses primary care, specialties, hospitalists, and tech-enabled navigation to coordinate care within Mosaic Health. In this episode, Roy Bejarano speaks with Tesha Simpson, CEO of Millennium Physician Group, about building a multi-specialty, community-based care model anchored in primary care. Tesha explains how MPG supports independent physicians, coordinates specialists, hospitalists, labs, imaging, and EHR workflows, and uses patient data to decide when to build services internally versus partner externally. The conversation also covers Mosaic Health, including CareMore, Vera, and Castlight, and how technology, AI, and navigation can complement—not replace—the human side of care while improving access, quality, cost management, and service consistency across different patient populations and geographies. What You’ll Learn ✅ How Millennium Physician Group evolved from supporting independent physicians into a multi-specialty care platform ✅ Why MPG anchors its model around primary care, community access, and care coordination ✅ How specialists, hospitalists, labs, imaging, and shared EHR access support better patient navigation ✅ How MPG decides whether to build specialty services internally or partner externally ✅ How Mosaic Health brings together Millennium, CareMore, Vera, and Castlight ✅ Why technology can complement care without replacing the human relationship ✅ How MPG evaluates new markets like Georgia, Texas, and North Carolina Key Timestamps (00:55) Millennium’s provider footprint and market expansion (02:46) MPG’s origin as a solution for independent physicians (03:45) Why Millennium became multi-specialty (04:42) Shared tech stack and coordinated specialty access (06:17) Integrated referrals, imaging, and EHR access (07:45) Coordination, access, and total cost of care (10:18) How MPG decides which specialties to build or partner with (14:14) Hospitalists, admissions, and care transitions (16:18) Mosaic Health and the three-business-unit model (17:53) CareMore and high-need senior populations (18:27) Vera, Castlight, navigation, and tech enablement (21:28) Technology as a complement to human care (23:18) Geographic expansion into Georgia, Texas, and North Carolina Key Takeaways 💎 Specialty care strengthens access, coordination, and total cost-of-care management. 💎 Shared leadership, patient information, imaging, and EHR access enable effective multi-specialty care. 💎 MPG builds specialties internally where needed and partners where it makes sense. 💎 Hospitalists support admissions, transitions, discharge planning, and follow-up care. 💎 Mosaic Health brings together community care, senior-focused care, employer health, and navigation technology. 💎 Technology and AI can reduce administrative burden while complementing—not replacing—human care. 💎 MPG expands into markets based on physician alignment, community need, Medicare fit, and an anchor location. Guest Bio Tesha Simpson is CEO of Millennium Physician Group, a community-based physician organization with a strong primary care foundation and multi-specialty capabilities. Her work focuses on care coordination, physician alignment, value-based care, patient access, market expansion, and reducing administrative burden for clinicians while improving outcomes for the populations Millennium serves. SEO Keywords Tesha Simpson, Millennium Physician Group, Mosaic Health, SCALE Community, Analyzing Healthcare, primary care, multi-specialty care, value-based care, care coordination, patient navigation, MSO strategy, physician group, Florida healthcare, CareMore, Vera, Castlight, healthcare technology, AI in healthcare, referral management, total cost of care, healthcare access