Mental Health & Addiction

Promoting behavioral health integration to improve outcomes

Capitol Hill Briefing on Paying for Outcomes in Addiction Recovery Services (February 26, 2020).

Numerous factors – federal and state legislative changes, incentives for payers and providers to integrate behavioral and physical health, and increasing demand for services – are changing the way mental health and addiction services are paid for and delivered. Third Horizon Strategies understands how each of these factors presents both opportunities and challenges for providers, policy makers, payers, and patients alike. Too often health systems are not poised with the work force capacity, infrastructure, or financial incentive to provide comprehensive care to individuals across the behavioral health spectrum. Since 2018, the firm’s leadership has supported the work of the Alliance for Addiction Payment Reform – an alliance focused on developing strategies to establish a structure that promotes an integrated treatment and recovery network. The firm helps organizations identify innovative care models and form nontraditional partnerships to promote community behavioral health and integration, improve health outcomes, and drive down the total cost of care.

Thought Leadership

What Would Dr. Kirk Do With This Moment?

An Open Letter to SAMHSA Single State Authorities – the Individuals that Administer the Federal Block for Substance Abuse Prevention and Treatment (SAPT) On Behalf of All States and Territories from Greg Williams. It’s impossible to forget the moments that forever...

What We Do


Convene coalitions and partnerships to inform and advance mental health and addiction policies

Customized Coaching

Offer customized coaching and support to help clients accelerate system changes necessary to provide high quality, coordinated care and achieve organizational sustainability


Identify and disseminate best practices through learning collaboratives, issue briefs, thought leadership, webinars, and reports

Market Insights

Conduct environmental scans, focus groups and key informant interviews to ascertain gaps, demand, and opportunities to enhance mental health and addiction prevention and treatment

Lead Contact

Greg Williams

Managing Partner

Greg is a health policy consultant and communications specialist, providing strategic oversight and direction to numerous initiatives. Greg has over a decade of experience working with non-profits and government agencies on addiction. Most notably, Greg manages the Alliance for Addiction Payment Reform, a national collaboration aimed at improving outcomes for patients, payers, and health systems, and served as a managing editor of the Addiction Recovery Medical Home Alternative Payment Model.

Explore our other specialties

Community Development

Advancing the health and vitality of our most vulnerable communities


Partnering with action-oriented commercial insurance entities to redesign how we minimize risk and maximize the health of organizations and individuals

Health Care

Charting a path for all individuals, families, and communities to achieve optimal health