People

Charles R. Buck

Partner
Areas of focus

Advises hospital systems, academic medical centers, faculty practice groups, ACOs, and health insurers on complex transactions and regulatory compliance

Handles mergers and acquisitions, joint ventures, strategic affiliations, and conversions to tax-exempt status in the healthcare sector

Counsels clients on federal fraud and abuse laws, including the Stark Law, and state regulatory matters

Advises on physician alignment, HMO regulatory matters, and healthcare organizational strategy

Charles (Charlie) R. Buck advises healthcare enterprises on complex transactions and regulatory compliance. He represents a wide range of clients, including hospital and health systems, academic medical centers and faculty practice groups, accountable care organizations, and health maintenance organizations (HMOs) and other health insurers.

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“Charles is practical, grounded and a knowledge expert.”

Chambers USA

Ranked in

Ranked in

Chambers USA, Band 1 in Healthcare

Recognized in

Recognized in

The Best Lawyers in America, Healthcare Law

Ranked in

Ranked in

Thomson Reuters, Stand-out Lawyer – independently rated lawyers

Results
  • Advised Lahey Health System on its consolidation with Beth Israel Deaconess Medical Center, New England Baptist Hospital, Mount Auburn Hospital, and Anna Jaques Hospital to form Beth Israel Lahey Health, the most significant healthcare transaction in the Massachusetts market since the formation of Partners HealthCare in 1994 
  • Advised Reliant Medical Group in the sale of its assets and operations to OptumCare, a division of UnitedHealth Group 
  • Advised RWJBarnabas Health in the negotiation of a long-term academic and clinical affiliation with Rutgers University 
  • Advised Dana-Farber Cancer Institute on the establishment of several community-based facilities 
  • Advised sophisticated medical oncology group on its acquisition by American Oncology Network (AON) 

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Recognitions
  • Chambers USA, Band 1 in Healthcare, 2006-2026 
  • The Best Lawyers in America, Healthcare Law, 2008-2026 
  • Thomson Reuters, Stand-out Lawyer – independently rated lawyers, 2024-2026 
  • The Best Lawyers in America, Lawyer of the Year in Boston: Healthcare Law, 2015, 2018, 2022 and 2025 
  • Legal 500 US, Recommended, 2015-2019 and 2024 
Capabilities and industries
Regional markets
Community
  • McDermott Will & Schulte, Boston Health Industry Advisory Practice Group, partner-in-charge  
  • McDermott Will & Schulte, Hospitals and Health Systems Practice Group, co-leader 
Credentials
Education
  • Stanford Law School, JD, Order of the Coif
  • Middlebury College, BA, magna cum laude
Admissions
  • Massachusetts
Languages
  • English