John M. Callahan

John M. Callahan

Chicago, IL recognized lawyers icon Recognized in Best Lawyers since 2014
McDermott Will & Schulte

259 Best Lawyers awards

McDermott Will & Schulte logo

Awarded Practice Areas

Health Care Law

Biography

John Callahan advises clients on health sector mergers and acquisitions. Public companies, private equity firms, nonprofit health systems, academic institutions and governmental entities have trusted John to assist them in executing their most critical transactions. His unique focus on corporate and healthcare law drives an efficient and client-oriented approach to executing transactions. John is Head of International Health M&A for the Firm.

Read full biography: https://www.mwe.com/people/callahan-john-m/

McDermott Will & Schulte

259 Best Lawyers awards

McDermott Will & Schulte logo

Overview

  • University of San Diego, J.D., graduated 1994
  • University of San Diego, J.D., graduated 1994

Client Testimonials

John Callahan is an excellent strategic partner for a dynamic health care organization. His ability to orchestrate complex transactions and his insights into negotiation and execution strategy have contributed greatly to achieving certain of the organization's goals.

Michael Holzhueter (Central DuPage Health)

Awards & Focus

Recognized in The Best Lawyers in America® 2026 for work in:
  • Health Care Law

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