Sara J. MacCarthy

Attorney | Milwaukee

Phone: (414) 721-0478
| Fax: (414) 721-0491

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About Sara

Sara MacCarthy has a broad range of litigation and appellate experience. Her work involves the representation of hospitals, physician groups, nursing homes and other licensed health care professionals with regard to health care regulatory issues, ERISA, commercial transactions, labor and employment, insurance, guardianships, medical staff issues and revenue cycle operations, including the management and collection of commercial and patient accounts. Sara frequently represents hospitals and other health care entities in the context of medical staff quality review and corrective action processes, fair hearings and related litigation, assisting these clients to maximize the intended benefit of peer review confidentiality and to achieve state and federal peer review immunity. She also represents health care clients in all areas of health law reimbursement, compliance and litigation issues, with a particular emphasis on Medicare and Medicaid reimbursement appeals before state and federal administrative bodies and state and federal courts.


Marquette University, B.A. - 1988

Marquette University Law School, J.D. - 1996


  • Wisconsin - 1996
  • U.S. District Court, Eastern District of Wisconsin - 1996
  • U.S. District Court, Western District of Wisconsin - 2007


  • State Bar of Wisconsin
  • American Bar Association
  • American Health Law Association
  • Milwaukee Bar Association
  • Association for Women Lawyers
  • Wisconsin Academy of Trial Lawyers

Significant Cases

  • Door County Memorial Hosp. v. Anthem Alliance Health Ins. Co., 2008 WL 3540598 (2008)
  • Ehlinger v. Hauser, 313 Wis. 2d 718, 758 N.W.2d 476 (2008)
  • Ehlinger v. Hauser, 325 Wis. 2d 287, 785 N.W2d 328 (2010)
  • Gister v. American Family Mut. Ins. Co., 342 Wis. 2d 496, 818 N.W.2d 880 (2012)
  • Masri v. State Labor and Industry Review Com'n , 356 Wis. 2d 405, 850 N.W.2d 298 (2014)
  • Triad Group, Inc. v. Vi-Jon, Inc., 870 F. Supp 2d 645 (E.D. Wis. 2012)


Year in Review: Legal Ethics Stories of 2018-2019
Legal Ethics for In-House Health Counsel Seminar [11/13/2019] SEE MORE