Saint Paul

Alliance Bank Center • Suite 1100

55 East Fifth Street

Saint Paul, Minnesota 55101

PHONE: 651.291.1177

FAX: 651.291.9477


Robert M. Mahoney

David C. Hutchinson

John B. Casserly

Charles A. Gross

Mark W. Hardy

Andrea P. Hoversten

Corinne G. Ivanca




Fitgers • Suite 203

600 East Superior Street

Duluth, Minnesota 55802

PHONE: 218.491.7899

FAX: 218.491.7896


Tracy A. Schramm




John B. Casserly, Partner


John represents health care providers in the state and federal courts of Minnesota and Wisconsin. Although he has a special interest in obstetrical and mental health issues, John has represented primary care providers, subspecialists, mid-levels, hospitals, nurses and nursing homes in nearly every area of health care. John also enjoys litigating complaints before professional licensing boards.

Prior to joining Geraghty, O’Loughlin & Kenney in 2004, John served as an Assistant Hennepin County Attorney, where he prosecuted violent crimes including homicide, sexual assault and armed robbery. Before that he represented the Hennepin County Medical Center in labor and employment law matters.

John also served for seven years on the Minneapolis Commission on Civil Rights, and he chaired the commission’s lawyers’ committee. As Civil Rights Commissioner, John presided over trials, mediations and motion practice for claims brought under the city’s civil rights ordinance.




Medical Malpractice Defense, Legal Malpractice Defense, Professional Ethics and Licensing, Health Care Credentialing, Premises Liability, Employment Law, Civil Rights, Long Term Care




Minnesota (1996)

Wisconsin (2005)

U.S. Court of Appeals For The Eighth Circuit (2006)

U.S. District Court, District of Minnesota (1997)

U.S. District Court, Western District of Wisconsin (2006)

U.S. District Court, Eastern District of Wisconsin (2019)




University of Wisconsin Law School (Madison, Wisconsin)

J.D., 1996

University of Minnesota (Minneapolis, Minnesota)

B.A., 1989




Protecting Medical Providers From Physical Harm Without Exposing Them To Liability, (Minnesota Defense, Winter 2017, 10-13)


Creating Useful Medical Chronologies, (Minnesota CLE 5-Minute Mentor video series, 2013)


Minnesota’s Land Recycling Act, Solving Problems by Evolving Superfund. 2, (Wisconsin Environmental Law Journal, #261, 1995)




A Hard Bargain: Treatment of Medical Special Damages for Medicare and Medicaid Beneficiaries. Presented with John Dornik. 2018 Minnesota Defense Lawyers Assoc./Minnesota Assoc. for Justice Medical Malpractice Conference. April, 2018.


Future Damages in Light of the Affordable Care Act. Presentation to joint meeting of the Minnesota Defense Lawyers’ Association’s Medical Liability and Health Care Law Committee and Long Term Care Committee. February, 2016.


Representing Health Care Providers. Course Co-Chair. Minnesota Continuing Legal Education. January 2016.


Health Professional Licensing and Regulation: The Law, The Process, Resolution and Avoiding Pitfalls. Presentation at Minnesota CLE Course Representing Health Care Providers. January 2016.


Legal Issues in the Medical Profession. Presentation to Association of Minnesota Chinese Physicians. November 2011.


Legal Issues in the Correctional Medical Setting.  Presentation to annual meeting of a physicians group. May 2009.


Various Deposition Issues in an Orthopedic Practice. Presentation to annual meeting of a major orthopedic practice group. November 2008.


Hospital Release of Information Issues.  Presentation to Medical Staff of a Wisconsin Community Hospital. January 2007.




American Bar Association

Minnesota State Bar Association

   - Member, Health Law Committee

   - Member, Task Force on Unincorporated Nonprofit Associations

Defense Research Institute

   - Member, Health Law Section

Minnesota Defense Lawyers Association

   - Co-Chair, Medical Liability and Health Care Law Committee

   - Member, Long Term Care Committee

Wisconsin Defense Counsel

Ramsey County Bar Association





© 2019 Geraghty, OLoughlin & Kenney

Minnesota & Wisconsin Trial Lawyers  |  Saint Paul 651.291.1177 | Duluth 218.491.7899