Lead end-to-end M&A integrations, partnership implementations, and market launches for a managed-care healthcare platform. Build integration management offices, create Day 1 and Day 100 plans, manage cross-functional workstreams, budgets, synergies, risks, and executive reporting. Oversee provider contracting, health plan delegation, finance, claims, clinical quality, technology, data migration, and change management. Develop repeatable integration playbooks and present progress to executive leadership.