John Michael Callahan
McDermott Will & Emery • Chicago, IL
Corporate IncorporationCorporate GovernanceHealthcarePersonal InjuryTechnology Sector
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Contact
Email
jcallahan@mwe.com
Phone
(866) 226-3645
Address
227 West Monroe Street Suite 3100, Chicago, IL, 60606-5064, US
Professional
About
John Michael Callahan is a distinguished attorney at McDermott Will & Emery, located at 227 West Monroe Street Suite 3100, Chicago, IL. With an impressive career spanning over three decades, John has established himself as a leading figure in the fields of Corporate & Incorporation, Health Care, and Life Sciences & Biotechnology law. His extensive experience and profound understanding of complex legal landscapes make him a trusted advisor to clients navigating the intricacies of these dynamic industries. John's practice is characterized by his strategic approach and meticulous attention to detail, qualities that have earned him the respect of clients and peers alike. He is adept at crafting innovative solutions that align with his clients' unique business objectives, ensuring compliance and fostering growth. Whether advising on corporate governance, facilitating healthcare mergers, or navigating the regulatory challenges of the biotechnology sector, John provides insightful and pragmatic counsel tailored to each client's needs. A steadfast advocate for his clients, John is committed to delivering exceptional legal services with integrity and professionalism. His dedication to staying abreast of the latest industry trends and regulatory developments enables him to offer forward-thinking advice that empowers clients to make informed decisions. At McDermott Will & Emery, John Michael Callahan continues to uphold the highest standards of legal excellence, helping clients achieve their strategic goals and secure a competitive advantage in an ever-evolving marketplace.
About Corporate Incorporation Law
Corporate attorneys help businesses with formation, governance, compliance, and transactions. They advise on corporate structure and protect business interests. Common matters include business formation, corporate governance, shareholder agreements, compliance.
Credentials
Education
1994 University of San Diego School of Law JD - Juris Doctor 1990 University of Notre Dame BA - Bachelor of Arts
Recognition & Involvement
Publications
2006 R & D Magazine Turning Research Into Gold 2005 Healthcare Financial Management 2005 10 Practical Tips for Successful Outsourcing 2003 Nursing Homes/Long Term Care Management: Buyers Guide Avoiding the Pitfalls in Purchasing SNFs 2003 Provider Buyers and Sellers Beware
Associations
American Bar Association Member American Health Lawyers Association Member Illinois State Bar Association Member Chicago Bar Association Member
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Updated: Jun 09, 2026