Tracking the most important health care lawsuits in U.S. courts today
September 1, 2026 | Eleventh Circuit rejects constitutional challenge to federal whistleblower lawsuits
This important alert links to ”How the Litigation Tracker Works
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Search for a lawsuit or issue More than 350 cases over 17 issues
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Explore related documentation Extensive library of key filing documents
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Learn the current status of the case Realtime case updates
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Read our analysis Read our take on the most pressing cases
Issues We’re Tracking
- 340B Program 21 cases
- Equity 53 cases 1 Topics
- Federal Health Funding 58 cases 5 Topics
- Health Care Affordability 63 cases 8 Topics
- Medicare Advantage 38 cases 5 Topics
- Prescription Drug Pricing 42 cases 5 Topics
- Private Health Insurance 114 cases 13 Topics
- Reproductive Health 53 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
- Status
- Briefing is ongoing
- Court
- New York Southern
- Goal
- Award damages
- Status
- Briefing is ongoing
- Court
- Fifth Circuit
- Goal
- Award damages +2 additional goal(s)
1:26-cv-12638
American Academy of HIV Medicine et al. v. Health Resources and Services Administration et al.
- Filed:
- June 10, 2026
- Status
- Briefing is ongoing
- Court
- Massachusetts
- Goal
- Block enforcement of an agency action +2 additional goal(s)
0:23-cv-03514
Estate of Gene B. Lokken et al. v. UnitedHealth Group Inc. et al.
- Filed:
- November 14, 2023
- Status
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Briefing is ongoing
Motion to Dismiss Granted in Part
- Court
- Minnesota — Fourth
- Goal
- Award damages +1 additional goal(s)
- Status
-
Decision issued
Motion for Preliminary Injunction Denied
- Court
- California Central — Western
- Goal
- Block operation of a program +1 additional goal(s)
- Status
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Briefing is ongoing
Motion to Dismiss Counterclaims Granted
- Court
- Texas Southern — Corpus Christi
- Goal
- Award damages
- Status
-
Appeal Filed
Case Stayed Pending Appeal
- Court
- Massachusetts
- Goal
- Block enforcement of an agency action +2 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
- Seventh Circuit
- Goal
- Award damages +2 additional goal(s)
1:25-cv-11816
State of New Jersey et al. v. Office of Management and Budget et al.
- Filed:
- June 24, 2025
- Status
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Decision issued
Motion for Summary Judgment Granted in Part
- Court
- Massachusetts
- Goal
- Block enforcement of an agency action +2 additional goal(s)
1:26-cv-03405
State of New York et al. v. Department of Health and Human Services et al.
- Filed:
- August 27, 2026
- Status
- Briefing is ongoing
- Court
- Maryland — Northern
- Goal
- Block enforcement of an agency action +2 additional goal(s)
- Status
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Decision issued
Motion for Preliminary Injunction Granted in Part
- Court
- Illinois Northern — Eastern
- Goal
- Block enforcement of an agency action +2 additional goal(s)
Key Dates
Hearing on Motion to Dismiss
Defendant’s Answer Due
Joint Status Report Due
Plaintiff’s Expert Disclosure Due
Plaintiff’s Reply Re: Motion for Summary Judgment Due
Plaintiff’s Reply Re: Motion for Summary Judgment Due
Defendants’ Certification of Administrative Record Due
Hearing on Motion to Dismiss
Plaintiffs’ Response to Motion to Stay Preliminary Injunction Due
Defendant’s Brief Due
Defendants’ Response to Motion to Complete Administrative Record Due
Hearing on Motions for Summary Judgment
Joint Status Report or Joint Notice of Dismissal Due
Defendants’ Response to Motion to Strike Due
Joint Status Report Due
Joint Discovery Plan Due
Plaintiff’s Surreply to Motion to Dismiss Due
Amended Complaint Due
Defendants’ Reply Re: Motions to Dismiss Due
Discovery Deadline
Joint Report Due
Joint Status Report Due
Scheduling Conference
Joint Status Report Due
Responses to Motion for Discovery Due
Joint Appendix and Plaintiffs’ Opening Brief Due
Oral Argument
Defendants’ Response Brief Due
Oral Argument
Hearing on Motions to Strike, Dismiss, and Stay Discovery
Hearing on Motions to Dismiss
Oral Argument
Defendants’ Response to Amended Complaint Due
Plaintiff’s Reply Brief Due
Status Conference
Defendants’ Brief Due
Plaintiffs’ Expert Disclosure Due
Plaintiffs’ Motion for Class Certification Due
Joint Status Report Due
Plaintiff’s Opening Brief Due
Defendant’s Response Due
Joint Status Report Due
Hearing on Motion for Summary Judgment
Hearing on Motions to Dismiss
Oral Argument
Hearing on Motion to Dismiss
Joint Status Report Due
Oral Argument
Plaintiff’s Response Brief Due
Discovery Deadline
Defendants’ Opening Brief Due
Plaintiff’s Response Brief Due
Plaintiffs’ Response Brief Due
Rule 26(f) Report Due
Motion to Certify Class Due
Joint Notice Due
Case Management Conference
Joint Status Report Due
In the News
• O’Neill Institute
Eleventh Circuit Upholds Whistleblower Statute Used To Fight Health Care Fraud
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Fifth Circuit Invalidates Two More Provisions Of No Surprises Act Rule
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