Tracking the most important health care lawsuits in U.S. courts today
October 2, 2026 | Federal court allows unions to continue antitrust lawsuit against NewYork-Presbyterian
This important alert links to ‘UFCW Local 1500 Welfare Fund v. The New York and Presbyterian Hospital’How the Litigation Tracker Works
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Search for a lawsuit or issue Browse more than 430 cases across 9 issues
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Explore court filings Access our extensive library of curated court filings
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Subscribe for the latest Get real-time case updates
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Dive even deeper Read our expert analysis
Issues We’re Tracking
- 340B Program 21 cases
- Equity 54 cases 1 Topics
- Federal Health Funding 61 cases 5 Topics
- Health Care Affordability 64 cases 8 Topics
- Medicare Advantage 38 cases 5 Topics
- Prescription Drug Pricing 43 cases 5 Topics
- Private Health Insurance 115 cases 13 Topics
- Reproductive Health 54 cases 5 Topics
- Transparency and Quality 9 cases

Our Team
We created the Health Care Litigation Tracker to make it easier to monitor the cases you care about and understand how courts are shaping health policy.

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
26-2355
Anthem Blue Cross Life and Health Insurance Company et al. v. HaloMD LLC et al.
- Filed:
- April 13, 2026
- Status
- Briefing is ongoing
- Court
- Ninth Circuit
- Goal
- Award damages +2 additional goal(s)
4:24-cv-00783
American Association of Ancillary Benefits et al. v. Kennedy et al.
- Filed:
- August 28, 2024
- Status
- Case Stayed
- Court
- Texas Eastern — Sherman
- Goal
- Block enforcement of an agency action +2 additional goal(s)
1:25-cv-05571
Cement and Concrete Workers DC Benefit Fund v. The New York and Presbyterian Hospital
- Filed:
- October 3, 2025
- Status
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Briefing is ongoing
Motion to Dismiss Denied
- Court
- New York Eastern
- Goal
- Award damages +5 additional goal(s)
- Status
-
Briefing is ongoing
Motion to Dismiss Counterclaims Granted
- Court
- Texas Southern — Corpus Christi
- Goal
- Award damages
- Status
- Briefing is ongoing
- Court
- District of Columbia
- Goal
- Block enforcement of a law +1 additional goal(s)
1:25-cv-10734
Pacific Inpatient Medical Group Inc. et al. v. Zelis Healthcare LLC et al.
- Filed:
- March 28, 2025
- Status
- Briefing is ongoing
- Court
- Massachusetts
- Goal
- Award damages +3 additional goal(s)
- Status
- Briefing is ongoing
- Court
- Kentucky Western
- Goal
- Award damages +2 additional goal(s)
1:26-cv-14051
State of Illinois et al. v. Department of Health and Human Services et al.
- Filed:
- September 2, 2026
- Status
- Briefing is ongoing
- Court
- Massachusetts
- Goal
- Block enforcement of an agency action +2 additional goal(s)
- Status
- Briefing is ongoing
- Court
- California Northern
- Goal
- Block enforcement of an agency action +4 additional goal(s)
1:26-cv-03498
Pharmaceutical Research and Manufacturers of America v. Kennedy et al.
- Filed:
- October 7, 2026
- Status
- Briefing is ongoing
- Court
- District of Columbia
- Goal
- Block enforcement of an agency action +2 additional goal(s)
- Status
- Briefing is ongoing
- Court
- Federal Circuit
- Goal
- Block enforcement of an agency action +2 additional goal(s)
- Status
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Briefing is ongoing
Motion for Stay Granted
- Court
- Maryland — Northern
- Goal
- Block enforcement of an agency action +2 additional goal(s)
Key Dates
Post-Trial Memorandum Due
Responses to Motion for Discovery Due
Defendants’ Brief Due
Defendants’ Response to Motion to Transfer Due
Plaintiffs’ Updated Reply Brief Due
Plaintiffs’ Expert Disclosure Due
Plaintiff’s Reply Brief Due
Responses to Motions to Dismiss and for Preliminary Injunction Due
Discovery Deadline
Joint Status Report Due
Plaintiff’s Opening Brief Due
Defendants’ Response to Motion for Preliminary Injunction Due
Plaintiffs’ Motion for Class Certification Due
Defendant’s Response Due
Defendants’ Cross-Motion for Summary Judgment Due
Joint Status Report Due
Hearing on Motions to Dismiss
Hearing on Motion for Summary Judgment
Petition for Rehearing En Banc Due
Hearing on Motions to Dismiss
Oral Argument
Joint Status Report Due
Hearing on Motion to Dismiss
Oral Argument
Plaintiff’s Response Brief Due
Joint Status Report Due
Discovery Deadline
Hearing on Motion to Dismiss
Administrative Record Due
Joint Status Report Due
Defendants’ Opening Brief Due
Defendants’ Response to Complaint Due
Plaintiff’s Response Brief Due
Defendant’s Response Brief Due
Plaintiffs’ Response Brief Due
Joint Status Report Due
Dismissal Deadline
Hearing on Motions for Preliminary Injunction and to Certify Class
Plaintiffs’ Motion for Summary Judgment Due
Defendants’ Response Brief Due
Rule 26(f) Report Due
Joint Status Report Due
Appellant’s brief due
Plaintiffs’ Optional Reply Brief Due
Oral Argument
Expert Discovery Deadline
Motion to Certify Class Due
Plaintiff’s Expert Disclosure Due
Plaintiff’s Expert Reports Due
Joint Notice Due
Case Management Conference
Joint Status Report Due
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