Mackall, Crounse & Moore, PLC has joined Dewitt Ross & Stevens S.C.

The newly formed DeWitt Mackall Crounse & Moore S.C. will provide clients with enhanced legal services
and efficiencies as well as access to more than 100 attorneys practicing in nearly 30 areas of
law in Wisconsin and Minnesota.

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Brian R. Purtell

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Jamie Van Ooyen

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With years of experience in the legal and regulatory minefield that health care providers face, Brian applies his knowledge, experience and relations to assist providers in navigating issues unique to the health care field in proactive compliance and performance improvement efforts, business transactions, contracting, as well as responding to enforcement actions, employment matters, or litigation. Clients appreciate his passionate advocacy on their behalf, while remaining mindful of the impact on the patients/residents they serve. Brian is a leading advocate on a national and local level for long term health care providers.

Brian is the chair of the firm’s Health Law Practice Group and has also served as the chairperson of the health care committee with Lexwork International and the Wisconsin State Bar Health Section.


Brian focuses his practice on representing, advocating for and advising on behalf of health care providers. He has a unique sub-specialty in the area of long term care. From the smallest owner-operated facility or practice, to the largest multi-state companies, Brian oversees the regulatory, compliance and transactions for his health care clients.

He serves as general counsel for the Wisconsin Health Care Association and the Wisconsin Occupational Therapy Association, and as the Executive Director of the Wisconsin Center for Assisted Living. He is a frequent speaker to the provider community as part of his efforts to assist and encourage proactive compliance efforts.

Client Recommendations

“Brian has the rare combination so valued by clients of being our business partner and our attorney. His prompt and effective responses to our legal and organizational needs have made him and his firm our choice for any legal matter in Wisconsin.” – Stacie L. Turner, Esq., Vice President & General Counsel, Exceptional Living Centers

“Brian understands the issues that impact the long-term-care industry extremely well and produces results in a timely manner. In addition, Brian does not lose sight of his clients’ interests in containing costs associated with legal matters.” – Lore Brownson, VP and Chief Counsel, RehabCare

Notable Representations

Brian is local counsel for four of the top ten largest nursing home providers in the country.

Some of the health care law areas Brian advises clients in include:

  • Compliance and Enforcement
  • Employment-screening, retention, discipline
  • Provider network contracting
  • Facility licensure/operations transfers
  • Provider acquisition/sale transactions 
  • Professional licensure actions
  • Abuse prevention, investigation, reporting
  • Collections
  • Guardianship
  • Advance Directives/End-of-Life/bioethics
  • Policy development

Our Locations

Greater Milwaukee - Get Directions

Green Bay - Get Directions

Madison - Get Directions

Minneapolis -Get Directions


Get to know us

DeWitt LLP is one of the ten largest law firms based in Wisconsin, with an additional presence in Minnesota. It has more than 130 attorneys practicing in Madison, Greater Milwaukee, Green Bay and Minneapolis in over 30 legal practice areas, and has the experience to service clients of all scopes and sizes.


We are an active and proud member of Lexwork International, an association of mid-sized independent law firms in major cities located throughout the Americas, Europe and Asia and an active member of SCG Legal, an association of more than 140 independent law firms serving businesses in all 50 state capitals and major commercial centers around the world.


Best Lawyers 2013 – 2021
Super Lawyers 2021
Compass Award 2012
Top 100 Lawyers: National Trial Lawyers Association


While we would like to hear from you, we cannot represent you until we know that doing so will not create a conflict of interest. Accordingly, please do not send us any information about any matter that may involve you until you receive a written statement from us that we represent you (an “engagement letter”). You will not be a client of the firm until you receive such an engagement letter.

The best way for you to initiate a possible representation is to call DeWitt LLP at 608-255-8891. We will make every effort to put you in touch with a lawyer suited to handle your matter. When you receive an engagement letter from one of our lawyers, you will be our client and we may exchange information freely.

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