John B. Tuffnell

John has over 25 years of experience litigating contract and business disputes, insurance matters, ERISA and employee benefit claims, and health care reimbursement issues. He represents businesses and individuals in contract and tort claims, including policyholders seeking coverage under insurance policies or employee benefit plans. John has counseled clients and litigated ERISA and employee benefit cases in many areas, including life, health, and disability benefits, ESOP valuation disputes, COBRA rights and penalties, and severance and retirement disputes. He has extensive experience in federal court in health insurance and health care payment disputes, including class actions. John also represents licensed individuals involved in administrative actions before state and federal regulators, including the Wisconsin Office of the Commissioner of Insurance, the Department of Financial Institutions, and the U.S. Department of Labor. Philosophy Behind our litigation approach We try cases in state and federal court. We provide smart, focused service to businesses and individuals seeking efficient solutions to legal disputes. Awards and Honors Super Lawyers® Selectees John B. Tuffnell included in a Super Lawyers® list Honors Named a "Rising Star" on the Wisconsin Super Lawyers list in ERISA Litigation, 2006 - 2008 Other Sources of Feedback About John B. Tuffnell Included on the 2025Wisconsin Super Lawyers list Past Lists 2024 Wisconsin Super Lawyers list 2023 Wisconsin Super Lawyers list 2022 Wisconsin Super Lawyers list 2021 Wisconsin Super Lawyers list 2008 Wisconsin Super Lawyers list 2007 Wisconsin Super Lawyers list 2006 Wisconsin Super Lawyers list

• Shareholder, since 2003

• Nyemaster Law Firm, Attorney, 1996 - 2002

• High Resolution: Employee Benefits Litigation Case Law Update, presenter, WHD Milwaukee Annual Human Resources Law Conference , December 4, 2012 - Present
• ERISA Refresher and Case Law Update, presenter, Wisconsin State Bar 8th Annual Employer Benefits Update, September 12, 2012 - Present
• Supreme Court Health Reform Debriefing: Where Do We Go From Here?, presenter, WHD Health Care Team Seminar, September 12, 2012 - Present
• Last Fiduciary Standing: Minimizing the Individual Risk of Serving as a Fiduciary on Your Company's Benefit Plan Committee, presenter, WHD Milwaukee Annual Human Resources Law Conference, October 25, 2011 - Present
• New Developments for Defined Contribution Retirement Plans, presenter, Wisconsin State Bar 7th Annual Employee Benefits Update , September 7, 2011 - Present
• ERISA Fiduciary Liability Case Law Examples From the Seventh Circuit, presenter, An Update on Employer Retirement Plan Fiduciary Responsibilities, Whyte Hirschboeck Dudek Joint Fiduciary Seminar , August 18, 2011 - Present
• ERISA Fiduciary Liability Case Law Examples From the Seventh Circuit, presenter, An Update on Employer Retirement Plan Fiduciary Responsibilities, Whyte Hirschboeck Dudek Joint Fiduciary Seminar , May 4, 2011 - Present
• Recouping “Usual, Customary and Reasonable” Reductions to Billed Charges, Wisconsin State Bar's 2009 Health Law Update, September 9, 2009 - Present

• Iowa, 1996
• Wisconsin, 2003

• Defense Research Institute; Life, Health and Disability Committee (Member)
• Wisconsin Bar Association (Member)
• American Bar Association, Litigation, Pretrial Practice and Insurance Law subsections (Member)
• American Health Lawyers Association (Member)