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

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382 Cases
Case Update

March 16, 2026 | District court blocks Secretary Kennedy’s efforts to reshape vaccine policy

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-01190

AbbVie Inc. v. Kennedy et al.

Filed:
April 8, 2026
Status
Briefing is ongoing
Court
District of Columbia
Goal
Block enforcement of an agency action +2 additional goal(s)

8:19-cv-02105

Doe et al. v. Bonta et al.

Filed:
November 1, 2019
Status
Appeal Filed
Court
California Central
Goal
Block enforcement of a law +1 additional goal(s)

3:23-cv-00654

Barrows et al. v. Humana, Inc.

Filed:
December 12, 2023
Status
Briefing is ongoing
Court
Kentucky Western
Goal
Award damages +2 additional goal(s)

2:25-cv-00220

Davis v. Cooprider et al.

Filed:
August 11, 2025
Status
Briefing is ongoing
Court
Texas Southern — Corpus Christi
Goal
Award damages

24-03654, 24-03655, 24-03700

Doe et al. v. Bonta et al.

Filed:
June 11, 2024
Status
Decision issued
Court
Ninth Circuit
Goal
Block enforcement of a law +1 additional goal(s)

Key Dates

Anthem Health Plans of Virginia, Inc. et al. v. AGS Health, Inc. et al

Defendants’ Reply Re: Motion to Dismiss Due

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

Defendants’ Response and Reply Re: Cross-Motion for Summary Judgment Due

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

Amended Pleadings Due

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

Joint Status Report Due

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

Federal and Intervenor-Defendants Reply to Motion to Dismiss Due

United Healthcare Services, Inc. v. Hospital Physician Services Southeast, P.C. et al.

Response to Motion for Summary Judgment Due

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

Second Administrative Record Due

Davis v. Cooprider et al.

Discovery Hearing

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

Defendants’ Reply to Motion for Summary Judgement Due

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

Hearing on Motion to Compel

United Healthcare Services, Inc. v. Concord Company of Tennessee, PLLC

Defendant’s Answer Due

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

Defendants’ Opening Brief Due

United States v. Anthem, Inc.

Defendant’s Position Statement Due

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

Defendants’ Opening Brief Due

State of Texas et al. v. Becerra et al.

Joint Status Report Due

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

Petition for Approval of Settlement Due

Rodriguez v. Coeytaux

Defendant’s Motion to Dismiss and Response to Plaintiff’s Motions Due

PHI Health, LLC v. Health Care Services Corporation

Defendant’s Answer Due

Blue Cross Blue Shield of Texas v. HaloMD LLC

Deadline for Plaintiff to Join Additional Parties

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

Expert Depositions Due

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

Plaintiffs’ Response to Motion for Reconsideration Due

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

Plaintiffs’ Response to Motion to Dismiss Due

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

Plaintiffs’ Response to Motion to Dismiss Due

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

Answer Due

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

Plaintiffs’ Reply to Answer Due

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

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

Conference

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

Plaintiff’s Opening Brief Due

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

Plaintiff’s Motion for Summary Judgment Due

Chavez-DeRemer v. Suffolk Administrative Services, LLC.

Plaintiff’s Brief Due

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

Defendants’ Response to Motion to Compel 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

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

Proposed Intervenors’ Brief and Appendix Due

Welty et al. v. Dunaway et al.

Plaintiffs’ Reply Brief Due

Association for Accessible Medicines v. Raoul

Defendant’s Response Brief Due

United States et al. v. OhioHealth Corporation

Initial Disclosures Due

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

Oral Argument

Greene et al. v. Healthfirst PHSP, Inc.

Amended Complaint Due

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

Plaintiff’s Motion for Summary Judgement Due

Barrows et al. v. Humana, Inc.

Status Conference

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

Plaintiffs’ Response Brief 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

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

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

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