J. Peter Rich has practiced almost exclusively in the health law field for more than 35 years, and routinely advises hospital systems, health plans and other health insurers, large medical groups and other providers, accountable care organizations (ACOs) and other clinically integrated networks, private equity companies and other health industry clients on a wide variety of complex mergers and acquisitions and other transactions, health regulatory compliance matters, hospital-medical staff matters, and health industry disputes. Peter has also on multiple occasions successfully contested enforcement actions by the Medical Board of California against physician practice management arrangements‎ alleged to be in violation of California’s prohibition against the corporate practice of medicine. For more than a decade, Peter has served as outside general counsel to the board of directors of one of the nation’s largest and most successful physician-owned malpractice insurance cooperative interindemnity arrangements. He co-chairs the Firm’s Insurance/Payors Affinity Group.


  • Formed, restructured and advised on complex contracting arrangements and regulatory matters involving numerous types of managed care organizations, including Medicare Shared Savings Program (MSSP), Pioneer, Next Gen, and commercial accountable care organizations (ACOs), new Centers for Medicare and Medicaid Services (CMS) bundled payments and CPC+ Program contracts, other types of clinically integrated networks, and health plans such as restricted and full-service California Knox-Keene Health Care Service Plans and specialized Knox-Keene behavioral health, vision, dental and chiropractic plans
  • Represented a major publicly traded health care company in the 2015-16 negotiation and successful closing of highly complex $400 million acquisition of a large medical group in the Northwest, including CON exemption and other regulatory matters
  • Represented a major publicly traded health care company in the successful negotiation of a 2016 national accountable care shared risk contract for all health care services provided to a special needs population

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  • The Best Lawyers in America 2008 to 2022, Administrative/Regulatory Law, Health Care Law, 2015 Administrative Law Lawyer of the Year for Los Angeles
  • Super Lawyers 2020
  • Chambers USA 2014
  • The Legal 500 2013, 2016
  • American Lawyer Media 2013, Top-Rated Lawyer in Healthcare
  • Martindale-Hubbell, AV Preeminent


  • American Health Lawyers Association
  • California Society for Healthcare Attorneys
  • Los Angeles County Bar Association, Healthcare Law Section
  • Governance Institute, faculty member
  • Institute for Medical Leadership, faculty member


Harvard Law School, JD, 1977
University of California – Los Angeles, AB, summa cum laude, 1974


Courts / Agencies
US District Court for the Central District of California

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