Defending Healthcare Professionals in Illinois, Indiana, Michigan, Missouri & Wisconsin

Experienced Healthcare Defense Attorneys

The Callahan Law Firm is a dynamic law practice dedicated to serving healthcare professionals in Illinois, Indiana, Michigan, Missouri and Wisconsin with a broad range of legal needs.

We at the Callahan Law Firm always fight to secure the best possible outcome for our clients while also working to minimize financial and emotional costs. You will be well served by our years of experience and our long-standing reputation. We look forward to providing you with the superior guidance and representation for which we have become known.

Michigan Professional Licensing Defense

Illinois Professional Licensing Defense

Wisconsin Professional Licensing Defense

Indiana Professional Licensing Defense

Missouri Professional Licensing Defense

Medicare/Medicaid Audit Response

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Proudly Defending Licensed Professionals & Pharmacies in Illinois, Indiana, Michigan, Missouri and Wisconsin

At the Callahan Law Firm, we assist licensed professionals who are facing legal threats to their practice. Whether you're navigating licensing board investigations or addressing disciplinary actions, we stand by your side, offering advocacy and guidance to safeguard your professional standing. Trust us to protect your career and advocate for your rights with unwavering dedication and expertise.

Clients we serve include physicians, chiropractors, nurses, pharmacists, pharmacies, dentists and any other licensed healthcare professionals. If your profession falls under one of these categories and you’re facing disciplinary action, get in touch with us today at (312) 209-9394 or request a free consultation.

Our Reviews

Trusted by Professionals

"Patrick is an excellent attorney who will give you sound advice. He will not price gouge or exaggerate on the extent of his services they way other attorneys (especially in the Chicago area) will. He will work to resolve issues at the lowest level possible and is also available to answer any question you might have. If you have some issue, do not hesitate to call his office today."

- Caitlin E.

"Patrick Callahan is an absolute professional, he is kind-hearted and very considerate of your situation. He is responsive and non-judgmental. Trust in him, he will not disappoint."

- Kayla P.

Amanda at Callahan firm has been my saving grace! I would trust anyone at Callahan with my case! She has been a great communicator & walked me through the whole process! If you're looking for someone to back you, don't hesitate on this decision! Worth every penny for the amount of work she has done! They see you from beginning to end & everything in between! Very trustworthy professionals!!!

- Former Client

I am writing to wholeheartedly recommend Sheila for her outstanding support and expertise in helping us establish our home care agency in Chicago. Her contributions were crucial to our success, and I believe her skills could be of immense value to you as well.

Sheila played a pivotal role in navigating the complex regulatory landscape, including the intricate Department of Health and Department of Aging applications (over 100 pages long in paperwork). Her deep knowledge of industry regulations and compliance requirements allowed her to streamline what is typically a multi-year process into a remarkably efficient few months.

Her well-written, thorough, and resourceful approach ensured that we met all necessary requirements and obtained our license without any hitches. We pride ourselves on our organizational skills, but Sheila’s involvement was a game-changer for us.

- Former Client

I wanted to take a moment to express my appreciation for the excellent service I received from you. From start to finish, the experience was seamless and exceeded my expectations. The credentials support/ process and follow up are impressive, and I felt valued as a customer throughout the process.

Thank you for providing such a high level of service. I look forward to continuing to do business with you and will certainly recommend your services to others.

- Former Client

Patrick is knowledgeable and personable! I would recommend him to anyone searching for an attorney. He helped me obtain my teaching license in a timely manner.

- Angelica R.

Through Callahan Law Firm I was able to cut through governmental red tape on a "stuck" Dental License application. I needed it as fast as possible. Callahan Delivered and reasonably as well!

- David F.

"Patrick was my attorney in my licensing issues with the state of Illinois and again with credentialing for BCBSIL. He was very attentive, available and hard-working, getting results from the IDFPR as quickly as possible. He understood what a grueling process this was for me and worked hard to get me practicing again. I'm very grateful to him and his support staff."

- Emily H.

Our Promise to You

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.

Call (312) 209-9394 Contact Us Online

Featured Story 4/01/2026

Indiana Pharmacist License Renewal 2026

If you’re an Indiana pharmacist preparing for your 2026 license renewal, it may feel like a routine process, but for many, it’s where unexpected issues surface. Most renewals go through without complication, but if you have a past disciplinary ma ...

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Call for Your Free Consultation

(312) 209-9394

Connect with us remotely! Phone and virtual meetings now available.

Chicago Office

111 W. Jackson Blvd.,
Suite 1700
Chicago, Illinois 60604

Indianapolis Office

201 N. Illinois Street,
16th Floor, South Tower
Indianapolis, Indiana 46204

Missouri Office

100 Chesterfield Business Parkway, Suite 200
Chesterfield, MO 63005

The information on this website is for general information purposes only. Nothing on this site should be taken as advice for any individual case or situation. This information is not intended to create, and receipt or viewing does not constitute client relationship.