Patrick M. Callahan is an experienced attorney licensed to practice law in Illinois and Indiana. He received his Juris Doctorate from DePaul University’s School of Law, a Masters in Public Health from Columbia University, and a Bachelors in Political Science from the University of California, Santa Barbara.
He previously worked for the Illinois Department of Financial and Professional Regulation and the Health Care Bureau of the Illinois Office of the Attorney General. He has a significant background in professional licensing and state and federal regulatory matters. His broad practice includes state licensing board litigation, state and federal OIG matters, DEA investigations, Medicare and Medicaid credentialing, and numerous other areas of practice.
He also teaches graduate level courses in public health at Benedictine University and the Dalian Medical University in Dalian, China.
Patrick founded The Callahan Law Firm in 2023 to ensure that healthcare professionals can access experienced and ethical legal counsel from attorneys who genuinely care about their cases.
We pride ourselves on providing a comprehensive service to our clients, which starts immediately upon us being retained. Our services do not end until a case is fully resolved, and we remain committed to helping our clients through any downstream effects. Our attorneys have a combined fifteen years of experience. We are prepared to fight for your rights and ability to work in the healthcare industry.
What You Need to Know If You Are Under Investigation by the Drug Enforcement Agency The Drug Enforcement Agency (DEA) has sweeping authority to inspect hospitals to ensure compliance with federal laws. It is essential to prepare for a DEA inspection ...
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