Kate McDonald - McDermott Will & Emery


Kate McDonald represents clients across the healthcare industry on complex regulatory matters and high-stakes mergers and acquisitions, affiliations and other investments. She has particular expertise in federal and state laws applicable to health insurers and HMOs, including the downstream implications of these rules for the provider organizations and vendors that work with them, as well as the reimbursement landscape of federal healthcare programs. Kate serves as Partner-in-Charge of the Healthcare practice in Washington, DC.

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  • Represented CVS Health Corp. in connection with its approximately $70 billion acquisition of Aetna Inc., leading a multidisciplinary team of McDermott attorneys advising on health regulatory, tax, real estate, IP, IT and other matters.
  • Provided corporate, health and tax representation for CVS Health Corp. in connection with the divestiture of Aetna Inc.’s standalone Medicare Part D prescription drug plans to a subsidiary of WellCare Health Plans, Inc.
  • Successfully represented Medicare Advantage organizations and Part D plans in connection with administrative appeals of Quality Star Ratings and application denials.

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  • Legal 500 United States, 2019 – 2022, Next Generation Partner
  • The Best Lawyers in America, Health Care Law, 2023
  • McDermott Will & Emery Client Service Award, 2019
  • American Health Lawyers Association, Pro Bono Champion, 2014


  • American Health Lawyers Association, Payers Plans and Managed Care Practice Group; Vice Chair, Medicare Advantage and Part D Affinity Group
  • National Women’s Law Center, Leadership Advisory Committee
  • DC Bar, Health Law Section


Georgetown University Law Center, JD, cum laude, 2010
University of North Carolina at Chapel Hill, BA, with highest honors, 2007

District of Columbia