Patrick Callaghan

Sheppard, Mullin, Richter & Hampton LLP

$ $$$

Avenue of the Stars 1901
Los Angeles 90067 CA US

Patrick M. Callaghan is an associate in the Corporate Practice Group in the firm’s Century City office. Patrick advises health care corporations on mergers and acquisitions, joint ventures, and other corporate transactions. His clients include nonprofit and for-profit health systems, academic medical centers, community hospitals, and post-acute and sub-acute providers such as home health and hospice providers, therapy providers, behavioral health providers, and senior living facilities.

Patrick also provides regulatory guidance to hospital, health system and physician clients on a wide range of regulatory matters such as physician contracting, Stark Law and the Anti-Kickback Statute (AKS) compliance, corporate practice of medicine compliance, licensure and accreditation, and Medicare and Medicaid enrollment.

In addition, he assists clients with identifying and addressing physician compensation arrangements that potentially implicate the Stark law, including self-disclosure of such arrangements to the Department of Justice (DOJ), the Office of the Inspector General (OIG), and Centers for Medicare & Medicaid Services (CMS).

Previously, Patrick was an associate in the health care department in the Chicago office of a large corporate law firm. While in law school, he was a member of the Journal of International Law and Business.


  • J.D., Northwestern University, 2013, cum laude
  • B.A., University of Notre Dame, 2010, cum laude

Admissions : Illinois


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Avenue of the Stars 1901
Los Angeles 90067 CA US
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Lina Stillman

Broadway 42
New York 10004 NY US