Charles R. Buck - McDermott Will & Emery


Charles (Charlie) R. Buck advises healthcare enterprises on complex transactions and regulatory compliance. He represents a wide range of clients, including proprietary and tax-exempt hospital systems, academic medical centers and faculty practice groups, accountable care organizations, and health maintenance organizations (HMOs) and other health insurers. Charlie is partner-in-charge of the Firm’s Boston Health Industry Advisory Practice Group.

Charlie provides legal counsel and solutions in connection with mergers and acquisitions, joint ventures, strategic affiliations, conversions to tax-exempt status, and other transactional matters. He advises clients forming and operating accountable care organizations (ACOs), including commercial ACOs and those in the Medicare Pioneer Program and Medicare Shared Savings Program ACOs.

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  • 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

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  • Chambers USA, Band 1 in Healthcare, 2006-2023
  • The Best Lawyers in America, Healthcare Law, Boston, 2008-2024
  • Thomson Reuters, Stand-out Lawyer – independently rated lawyers, 2024
  • The Legal 500 United States, 2015-2019
  • The Best Lawyers in America, “Lawyer of the Year” for Health Care Law, Boston, 2015, 2018 and 2022


Stanford Law School – Stanford University, JD, Order of the Coif, 2001
Middlebury College, BA, magna cum laude, 1992