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

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406 Cases
Case Update

June 12, 2026 | Federal district court strikes down rules to restrict Affordable Care Act enrollment

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

1:26-cv-00334

Mayday Health v. Labrador

Filed:
May 29, 2026
Status
Briefing is ongoing
Court
Idaho
Goal
Block defendant action +1 additional goal(s)

1:25-cv-12019

State of California et al. v. Kennedy et al.

Filed:
July 17, 2025
Status
Briefing is ongoing

Motion for Preliminary Injunction Denied

Court
Massachusetts
Goal
Block enforcement of an agency action +1 additional goal(s)

Key Dates

Cement and Concrete Workers DC Benefit Fund v. The New York and Presbyterian Hospital

Motions for Appointment of Interim Lead Class Counsel Due

UFCW Local 1500 Welfare Fund v. The New York and Presbyterian Hospital

Motions for Appointment of Interim Lead Class Counsel Due

Doe et al. v. Bonta et al.

Status Conference

Mayday Health v. Labrador

Defendant’s Response to Motion for Preliminary Injunction Due

Berton v. Aetna Inc. et al.

Response Due

United States v. Anthem Inc.

Defendant’s Reply Re: Notice Due

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

Defendants’ Reply Re: Motion to Dismiss, Special Motion to Strike, and Request for Judicial Notice Due

Wesco Inc. et al. v. Blue Cross Blue Shield of Michigan

Scheduling Conference

City of Columbus et al. v. Kennedy et al. (Columbus I)

Plaintiffs’ Response Brief Due

PHI Health, LLC v. Health Care Services Corporation

Defendant’s Reply Re: Motion to Dismiss Due

EmblemHealth Inc. v. Rowe et al.

Hearing on Motion to Dismiss

Pacific Inpatient Medical Group Inc. et al. v. Zelis Healthcare LLC et al.

Joint Status Report Due

Commonwealth of Pennsylvania et al. v. Trump et al.

Oral Argument

State of California et al. v. Kennedy et al.

Hearing on Plaintiffs’ Motion for Summary Judgment, Defendants’ Cross Motion for Summary Judgment, and Opposition to Plaintiffs’ Motion for Summary Judgment

ACA International et al. v. Fulford et al.

Defendants’ Motion to Dismiss Due

Davis v. Cooprider et al.

Hearing on Motion to Compel and Motion to Seal

American Academy of HIV Medicine et al. v. Health Resources and Services Administration et al.

Hearing on Motion for Preliminary Injunction

Barrows et al. v. Humana, Inc.

Status Report Due

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

Defendants’ Brief Due

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

Plaintiffs’ Response to Motion for Judgment on the Pleadings Due

Health Care Service Corporation v. Neuromonitoring Associates LLC et al.

Plaintiff’s Response to Motion to Dismiss Due

Doe et al. v. Anthem Healthchoice Assurance Inc. et al.

Plaintiffs’ Opening Brief Due

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

Plaintiffs’ Response Brief Due

President and Fellows of Harvard College v. Department of Health and Human Services et al.

Plaintiff’s Brief Due

Greene et al. v. Healthfirst PHSP Inc.

Plaintiffs’ Response to Motion to Dismiss Due

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

Plaintiffs’ Response to Motion to Dismiss Due

American Academy of Pediatrics et al. v. Kennedy et al.

Plaintiffs’ Response Brief Due

Blue Cross Blue Shield of Texas v. Zotec Partners LLC

Deadline to Join Additional Parties

Aetna Health Inc. et al. v. Radiology Partners Inc. et al.

Plaintiffs’ Opening Brief Due

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

Plaintiff’s Response to Motion to Dismiss Due

Sonderling v. Suffolk Administrative Services LLC. et al.

Defendants’ Response to Motion to Strike Due

AbbVie Inc. v. Kennedy et al.

Plaintiff’s Response to Motion to Dismiss Due

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

Defendants’ Response to Motion for Class Certification Due

Faulk Company, Inc. v. Kennedy et al.

Oral Argument

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

Plaintiffs’ Opening Brief Due

Agag v. Cigna Health and Life Insurance Company

Defendant’s Brief Due

Burbage v. U.S. Anesthesia Partners Inc. et al.

Fact Discovery Cut Off

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

Discovery Related Deadline

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

Joint Status Report Due

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

Hearing on Motion to Dismiss

State of Louisiana et al. v. Food and Drug Administration et al.

Oral Argument

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

Declarations Re: Class Certification Due

St. Luke’s Health System LTD v. Labrador

Plaintiff’s Expert Disclosure Due

Tiara Yachts Inc. v. Blue Cross Blue Shield of Michigan

Plaintiff’s Disclosure of Expert Reports (Rule 26(a)(2)(B)) Due

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

Joint Status Report Due

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

Joint Status Report Due

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