Tracking the most important health care lawsuits in U.S. courts today

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388 Cases
Case Update

April 9, 2026 | Court rejects insurer’s challenge to arbitration abuses under the No Surprises Act

How the Litigation Tracker Works

  1. Search for a lawsuit or issue More than 350 cases over 17 issues

  2. Explore related documentation Extensive library of key filing documents

  3. Learn the current status of the case Realtime case updates

  4. Read our analysis Read our take on the most pressing cases

Issues We’re Tracking

Our Team

We’re the experts on health care litigation. We’re here to make the process of navigating and understanding health care litigation easy.

Katie Keith

Director of the Center for Health Policy and the Law at the O’Neill Institute

Andrew J. Twinamatsiko

Director of the Center for Health Policy and the Law at the O’Neill Institute

Latest Updates

6:25-cv-02409

State of Oregon et al. v. Kennedy et al.

Filed:
December 23, 2025
Status
Decision issued

Motion for Summary Judgment Granted

Court
Oregon
Goal
Block enforcement of an agency action +2 additional goal(s)

1:26-cv-01566

State of Illinois et al. v. Vought et al.

Filed:
February 11, 2026
Status
Briefing is ongoing

Motion for Preliminary Injunction Granted in Part

Court
Illinois Northern — Eastern
Goal
Block enforcement of an agency action +2 additional goal(s)

Key Dates

State of Washington et al. v. Department of Health and Human Services et al.

Answer Due

Federal Trade Commission v. U.S. Anesthesia Partners, Inc. et al.

Status Conference

Anthem Blue Cross Life and Health Insurance Company et al. v. Prime Healthcare Services – St. Francis, LLC et al.

Answer Due

Bryant v. Stein et al.

Supplemental Briefs Due

Seth Stern et al. v. JPMorgan Chase & Co. et al.

Plaintiffs’ Reply to Answer Due

AbbVie Inc. v. Department of Health and Human Services et al.

Plaintiff’s Motion for Summary Judgment Due

Doe et al. v. Carelon Behavioral Health, Inc.

Defendant’s Answer Due

McComb Children’s Clinic, LTD. v. Kennedy et al.

Plaintiff’s Opening Brief Due

Estate of Gene B. Lokken et al. v. UnitedHealth Group, Inc. et al.

Defendants’ Response to Motion to Compel Due

Data Marketing Partnership LP v. Department of Labor et al.

Hearing on Motion to Compel

Chavez-DeRemer v. Suffolk Administrative Services, LLC.

Plaintiff’s Brief Due

Electrical Medical Trust et al. v. U.S. Anesthesia Partners Inc. et al.

Defendants’ Answer to Amended Complaint Due

Lewandowski et al. v. Johnson & Johnson et al.

Plaintiffs’ Opening Brief Due

Amneal Pharmaceuticals LLC v. Weiser et al.

Amended Pleadings Due

Uriel Pharmacy Health and Welfare Plan et al. v. Advocate Aurora Health, Inc. et al.

Expert Depositions Due

American Hospital Association et al. v. AbbVie Inc. et al.

Proposed Intervenors’ Brief and Appendix Due

United States et al. v. OhioHealth Corporation

Defendant’s Answer Due

Welty et al. v. Dunaway et al.

Plaintiffs’ Reply Brief Due

Mylan Pharmaceuticals Inc. et al v. Sanofi-Aventis U.S. LLC et al.

Defendants’ Reply Re: Motion for Reconsideration Due

Rowe Plastic Surgery of NJ LLC v. Aetna Life Insurance Company

Non-Party Insurers’ Amicus Brief Due

American Hospital Association et al. v. PatientRightsAdvocate.org Inc.

Joint Status Report Due

PHI Health, LLC v. Health Care Services Corporation

Amended Complaint Due

Association for Accessible Medicines v. Raoul

Defendant’s Response Brief Due

Greene et al. v. Healthfirst PHSP, Inc.

Amended Complaint Due

H. et al v. University of California Board of Regents et al.

Petition for Approval of Settlement or Joint Status Report Due

Rapides Parish v. Department of Health & Human Services et al.

Oral Argument

American Association of University Professors-Harvard Faculty Chapter et al. v. Department of Justice et al.

Plaintiffs’ Response Brief Due

Barrows et al. v. Humana, Inc.

Status Conference

Humana Inc. et al. v. Kennedy et al.

Plaintiffs’ Response Brief Due

American Psychiatric Association et al. v. EmblemHealth, Inc. et al.

Plaintiffs’ Response to Motion to Dismiss Due

Healthcare Distribution Alliance v. Boughton et al.

Oral Argument

United States ex rel. Shea v. eHealth, Inc. et al.

Scheduling Conference

American Association of University Professors et al. v. Department of Justice et al.

Oral Argument

State of Arizona et al. v. Kennedy et al.

Case Management Conference

Pharmaceutical Research and Manufacturers of America v. Rhonda Chakolis, et al.

Joint Status Update Due

UnitedHealthcare Insurance Company v. Maui Memorial Emergency Medical Associates, Inc.

Hearing on Motion to Dismiss

State of New York et al. v. Kennedy et al.

Joint Status Report Due

St. Luke’s Health System LTD v. Labrador

Plaintiff’s Expert Disclosure Due

Berton v. Aetna Inc. et al.

Response Due

City of Columbus et al. v. Kennedy et al.

Plaintiffs’ Response Brief Due

Anthem Blue Cross Life and Health Insurance Company et al. v. HaloMD LLC et al.

Plaintiffs’ Opening Brief Due

ERISA Industry Committee v. Department of Health and Human Services et al.

Joint Status Report Due

Estuary Transit District et al. v. Hartford HealthCare Corporation et al.

Completion of Expert Depositions

American Academy of Pediatrics v. Department of Health and Human Services et al.

Joint Status Report Due

United States et al. ex rel. Mazik v. Kaiser Foundation Health Plan Inc. et al.

All Motions Due

Chavez-DeRemer v. Suffolk Administrative Services, LLC. et al.

Written Discovery Requests Due

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