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Michael R. Callahan Email & Phone Number

Nationally Recognized Health Care Attorney and now Senior Health Care Consultant with the Hardenbergh Group at The Hardenbergh Group
Location: Greater Chicago Area, United States 4 work roles 2 schools
3 work emails found @kattenlaw.com 5 phones found area 212 and 312 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 3 work emails · 5 phones

Work email m****@kattenlaw.com
Direct phone (212) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Nationally Recognized Health Care Attorney and now Senior Health Care Consultant with the Hardenbergh Group
Location
Greater Chicago Area, United States
Company size

Who is Michael R. Callahan? Overview

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Quick answer

Michael R. Callahan is listed as Nationally Recognized Health Care Attorney and now Senior Health Care Consultant with the Hardenbergh Group at The Hardenbergh Group, a with 63 employees, based in Greater Chicago Area, United States. AeroLeads shows a work email signal at kattenlaw.com, phone signal with area code 212, 312, and a matched LinkedIn profile for Michael R. Callahan.

Michael R. Callahan previously worked as Senior Health Care Consultant at The Hardenbergh Group and Senior Counsel | Health Care Practice Group at Katten Muchin Rosenman Llp. Michael R. Callahan holds Juris Doctor, Law from Depaul University College Of Law.

Company email context

Email format at The Hardenbergh Group

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mcallahan@kattenlaw.com
82% confidence

AeroLeads found 3 current-domain work email signals for Michael R. Callahan. Compare company email patterns before reaching out.

Profile bio

About Michael R. Callahan

As a nationally recognized advisor to health care providers across the country, I provide deeply informed business and legal counseling in all areas of hospital-physician relations and health care regulatory compliance and governmental investigations, including the Emergency Medical Treatment and Active Labor Act (EMTALA), the Health Insurance Portability and Accountability Act (HIPAA), Medicare Conditions of Participation (CoPs), hospital licensure and accreditation standards. I am widely respected for my leading work on the Patient Safety Act from a regulatory compliance, policy and litigation standpoint, including the development of patient safety organizations (PSOs).Health systems, hospitals and physician groups large and small across the country come to me for practical, real-world guidance and answers to challenging legal and operational issues, which I can provide quickly because of his many years of experience. I understand the reality of hospital quality, peer review, risk management and related operational legal and regulatory complexities and can rely on a large client base in order to provide better and comparative solutions.I am also sought out by many of the largest health systems around the country for my understanding and interpretation of the Patient Safety Act. In a case of first impression I advised a national pharmacy that became the first provider to successfully assert an evidentiary privilege under the Patient Safety Act. Since that case, I have represented or advised many hospitals, physician groups and other licensed providers in creating or contracting with federally certified PSOs and has been directly involved in most of the major state appellate and federal court decisions interpreting the Patient Safety Act.[Attorney Advertising: Prior results do not guarantee a similar outcome.]

Listed skills include Corporate Law, Litigation, Legal Research, Commercial Litigation, and 7 others.

Current workplace

Michael R. Callahan's current company

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The Hardenbergh Group
The Hardenbergh Group
Nationally Recognized Health Care Attorney and now Senior Health Care Consultant with the Hardenbergh Group
livonia, michigan, united states
Employees
63
AeroLeads page
4 roles

Michael R. Callahan work experience

A career timeline built from the work history available for this profile.

Senior Health Care Consultant

Current

Livonia, Michigan, United States

Senior Health Care Consultant providing consultation and related services to hospitals, health systems, medical staffs and other health care providers in addition to Patient Safety Organizations and their members. Services include work in the areas of peer review, medical staff bylaws, rules and regs, Data Bank reporting standards, medical staff integration, educational programs and assisting providers in maximizing privilege protections and policy development under state law and the Patient Safety and Quality Improvement Act of 2005 after 43 years as a full time health care attorney.

Aug 2024 - Present

Law Clerk To Justice Daniel P. Ward

Supreme Court Of Illinois

Chicago, Illinois

Aug 1979 - Aug 1981
Team & coworkers

Colleagues at The Hardenbergh Group

Other employees you can reach at hardenberghgroup.com. View company contacts for 63 employees →

2 education records

Michael R. Callahan education

Juris Doctor, Law

Activities and Societies: Student Bar Association Representative Student Bar Association President Student Representative, Faculty.

Ba Political Science, With Honors

Activities and Societies: Student Association Senator Student Association Welfare Advisor Phi Sigma Alpha, National Political Science.

FAQ

Frequently asked questions about Michael R. Callahan

Quick answers generated from the profile data available on this page.

What company does Michael R. Callahan work for?

Michael R. Callahan works for The Hardenbergh Group.

What is Michael R. Callahan's role at The Hardenbergh Group?

Michael R. Callahan is listed as Nationally Recognized Health Care Attorney and now Senior Health Care Consultant with the Hardenbergh Group at The Hardenbergh Group.

What is Michael R. Callahan's email address?

AeroLeads has found 3 work email signals at @kattenlaw.com for Michael R. Callahan at The Hardenbergh Group.

What is Michael R. Callahan's phone number?

AeroLeads has found 5 phone signal(s) with area code 212, 312 for Michael R. Callahan at The Hardenbergh Group.

Where is Michael R. Callahan based?

Michael R. Callahan is based in Greater Chicago Area, United States while working with The Hardenbergh Group.

What companies has Michael R. Callahan worked for?

Michael R. Callahan has worked for The Hardenbergh Group, Katten Muchin Rosenman Llp, Hinshaw & Culbertson Llp, and Supreme Court Of Illinois.

Who are Michael R. Callahan's colleagues at The Hardenbergh Group?

Michael R. Callahan's colleagues at The Hardenbergh Group include Chris Hinton, Cpcs, Cpmsm, Lisa Croke, Kathleen Sample, Stephanie F., and Jasmyn Blackmon.

How can I contact Michael R. Callahan?

You can use AeroLeads to view verified contact signals for Michael R. Callahan at The Hardenbergh Group, including work email, phone, and LinkedIn data when available.

What schools did Michael R. Callahan attend?

Michael R. Callahan holds Juris Doctor, Law from Depaul University College Of Law.

What skills is Michael R. Callahan known for?

Michael R. Callahan is listed with skills including Corporate Law, Litigation, Legal Research, Commercial Litigation, Health Law, Appeals, Civil Litigation, and Courts.

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