Advancing Provider-Centric Healthcare, Network Strategy & Member Outcomes
In a significant leadership appointment within the U.S. healthcare and payer ecosystem, Mark Santos has been named Senior Vice President, Head of Network Strategy and Provider Experience at Aetna, a CVS Health company. This appointment marks a defining chapter in a more than two-decade career dedicated to building sustainable healthcare models that balance provider partnerships, member experience, and enterprise performance.
With deep expertise across commercial insurance, Medicaid, government programs, underwriting, and regional market leadership, Mark’s elevation reflects Aetna’s strategic focus on making provider experience a core pillar of healthcare delivery.
Stepping Into the Role: Network Strategy & Provider Experience
As Senior Vice President, Mark is responsible for leading provider networks and experience across Aetna’s Commercial, Medicare, Medicaid, and specialty businesses. His mandate centers on embedding provider-centric thinking into how Aetna delivers on its mission–helping members improve and maintain their health and well-being.
His responsibilities include:
- Shaping national provider network strategy across multiple lines of business
- Strengthening provider engagement, satisfaction, and operational collaboration
- Aligning network design with affordability, access, and quality outcomes
- Driving consistency of provider experience across markets and products
- Partnering with clinical, operational, and government stakeholders at scale
In an increasingly complex healthcare environment, this role demands both strategic clarity and deep operational insight–capabilities Mark has built steadily over his career.
President, Aetna Medicaid: Leading Care for Diverse Populations
Prior to his current role, Mark served as President of Aetna Medicaid, where he led one of the organization’s most critical and socially impactful businesses.
During his tenure, he:
- Led Medicaid operations serving diverse member populations across multiple states
- Partnered closely with state governments and local provider ecosystems
- Focused on improving health outcomes for populations with complex needs
- Balanced regulatory, financial, and care-delivery priorities at scale
- Strengthened Aetna’s position as a trusted Medicaid partner
This role reinforced his reputation as a leader who combines policy understanding, community partnership, and operational excellence.
Driving Commercial Innovation and Portfolio Leadership
Earlier, as Vice President and Head of Diversified Commercial Solutions, Mark oversaw a broad and complex portfolio including:
- International health plans
- Federal Employee Health Benefits
- TPA & wholesale businesses
- Student health programs
- Dental, vision, and voluntary benefits
Managing these distinct businesses required cross-functional leadership, portfolio strategy, and disciplined execution–skills that continue to inform his enterprise-wide leadership approach.
Building Market Strength: From Underwriting to Regional Leadership
Mark’s career at Aetna includes several foundational leadership roles that shaped his end-to-end understanding of the healthcare value chain:
- VP, Head of Commercial Underwriting, driving pricing discipline and risk strategy
- President, New England Market, leading regional growth, provider relations, and market performance
- Vice President, Head of Dental and Vision, expanding ancillary benefits strategy
- Chief of Staff & Head of Strategy, Government Services, aligning long-term strategy with public-sector healthcare priorities
- Program Lead – Medicaid, building early expertise in government-sponsored healthcare
Together, these roles reflect a rare combination of financial acumen, market leadership, and healthcare policy insight.
Leadership Philosophy: Where Providers, Members, and Strategy Converge
Across every phase of his career, Mark Santos has demonstrated a consistent leadership philosophy:
- Strong provider partnerships are essential to better member outcomes
- Healthcare strategy must balance access, affordability, and quality
- Execution excellence matters as much as vision
- Sustainable healthcare requires collaboration across public and private ecosystems
His progression underscores the evolution of healthcare leadership–from siloed functions to integrated, experience-driven models.
CXO Gateway Reflection
At CXO Gateway, we see Mark Santos’s appointment as Senior Vice President, Head of Network Strategy and Provider Experience as a powerful signal of where healthcare leadership is headed.
As payers place increasing emphasis on provider experience, network optimization, and holistic member care, leaders like Mark–who bring depth across Medicaid, commercial insurance, regional markets, and enterprise strategy–will play a defining role in shaping the future of healthcare delivery in the United States.