John Overstreet
Glastonbury,CT
Summary
Enterprise healthcare operations and supplier management executive with 17+ years of experience leading large-scale vendor, BPO, and contingent workforce ecosystems within highly regulated payor environments. Proven ability to govern complex global service portfolios, optimize $2B+ in annual spend, and deliver sustained improvements in service quality, compliance, cost efficiency, and operational resilience. Trusted advisor to executive leadership, recognized for building controls-based governance models, leveraging analytics for decision-making, and driving measurable enterprise outcomes.
Overview
38
38
years of professional experience
1
1
Certification
Work History
Consultant, Health Insurance & Third-Party Services
GERSON LEHRMAN GROUP (GLG)
Remote
08.2025 - Current
- Serve as a strategic advisor to healthcare payors, service organizations, and investment firms on vendor management, outsourcing strategy, and service-delivery optimization.
- Lead evaluations of third-party administrators, BPO partners, clinical services vendors, and analytics providers, assessing scalability, cost structure, compliance posture, and operational risk.
- Designed standardized vendor governance and total-cost-of-ownership frameworks that delivered ~22% average cost reduction while strengthening service-level accountability and regulatory alignment.
- Developed executive-level analytics, benchmarking models, and performance scorecards to support sourcing decisions, board-level discussions, and M&A diligence.
- Provide rapid, data-driven insight into payor operations, vendor risk exposure, and market dynamics to support executive decision-making.
Director, Strategic Sourcing & Category Management
THE CIGNA GROUP
Bloomfield, CT
11.2007 - 05.2025
- Held enterprise accountability for sourcing strategy, vendor governance, and category management across $2B+ in annual spend supporting core service operations, clinical services, pharmacy operations, and enterprise functions.
- Led governance and performance management for a broad, multi-vendor portfolio spanning domestic and international service providers, ensuring SLA adherence, regulatory compliance, and operational continuity.
- Delivered $35–$50M in recurring annual savings and $1B+ in cumulative enterprise value through vendor rationalization, contract renegotiation, and operating-model optimization.
- Designed and implemented standardized governance frameworks, KPIs, and executive dashboards linking vendor performance, cost, quality, and risk to enterprise objectives.
- Partnered closely with Service Operations, Compliance, Legal, Finance, HR, and Technology leadership to strengthen controls-based oversight, business continuity planning, and disaster recovery readiness across critical vendors.
- Oversaw vendor onboarding, lifecycle management, and performance remediation processes supporting large outsourced and contingent workforces.
- Built, developed, and led a global team of 15 professionals; established performance management, succession planning, and leadership development programs.
- Applied Six Sigma methodologies to streamline sourcing, contracting, and vendor management workflows, reducing cycle times by up to 78% while improving control effectiveness.
- Recognized internally as a trusted executive partner for complex negotiations, risk-sensitive engagements, and enterprise-wide transformation initiatives.
Adjunct Professor
MANCHESTER COMMUNITY COLLEGE
Manchester, CT
01.2005 - 05.2025
- Led curriculum design and instruction with a strong emphasis on analytics, governance, and structured decision-making; consistently recognized for leadership and instructional quality.
Military Police Officer (MM2)
UNITED STATES NAVY
11.1987 - 01.1993
- Led security and compliance operations in high-risk, regulated environments, supporting mission-critical operations and large, distributed teams.
Education
M.S. - Criminology
Central Connecticut State University
B.A. - Criminal Justice & Sociology
Central Connecticut State University
Skills
- Vendor & BPO Governance (Claims, Call Center, Back Office, Clinical, Analytics)
- Service Operations Leadership & Performance Optimization
- Global Sourcing Strategy & Contract Negotiation ($100M portfolios)
- Contingent Workforce Lifecycle Management (Workday)
- KPI, SLA & Controls-Based Governance Frameworks
- Business Intelligence, Executive Dashboards & Analytics
- Predictive Modeling, Spend Forecasting & Cost Transparency
- Regulatory Compliance, Risk Management & Business Continuity
- Enterprise Stakeholder Influence & Cross-Functional Leadership
Websites
Certification
- Six Sigma Green Belt
- GAP Leadership – Advanced Negotiations Strategist
Timeline
Consultant, Health Insurance & Third-Party Services
GERSON LEHRMAN GROUP (GLG)
08.2025 - Current
Director, Strategic Sourcing & Category Management
THE CIGNA GROUP
11.2007 - 05.2025
Adjunct Professor
MANCHESTER COMMUNITY COLLEGE
01.2005 - 05.2025
Military Police Officer (MM2)
UNITED STATES NAVY
11.1987 - 01.1993
B.A. - Criminal Justice & Sociology
Central Connecticut State University
M.S. - Criminology
Central Connecticut State University