Medicaid providers’ right to sue
Armstrong v. Exceptional Child Center
In brief
The Supreme Court overturned the Ninth Circuit’s judgment and ruled that providers could not use this kind of federal-court suit to enforce Section 30(A).
- Where it stands
- Decided
Decided 5-4 · March 31, 2015 · Opinion by Justice Breyer
- What it’s about
- Idaho Medicaid providers challenged state reimbursement rates under federal law, raising whether the Supremacy Clause let them sue to enforce Medicaid requirements. The Supreme Court overturned the Ninth Circuit’s ruling.
- Who it affects
- The ruling bars these providers from using this particular federal-court route to require Idaho to follow Section 30(A).
Summary: written with AI from the case record.

What it's about
Section 30(A) of the Medicaid Act was the federal provision at the center of the providers’ rate challenge.
Question presented
Does the Supremacy Clause give Medicaid providers a private right of action against a state when Congress chose not to create enforceable rights under the Medicaid Act?
What the Court decided
Holding
The judgment is reversed. 567 Fed. Appx. 496, reversed.
- Result
- Reversed
The vote
From the opinions
“Nevertheless, today the Court holds that Congress has foreclosed private parties from invoking the equitable powers of the federal courts to require States to comply with §30(A) of the Medicaid Act, 42 U. S. C. §1396a(a)(30)(A).”
What's next
The Supreme Court has completed its review; no further court step is specified in the decision.
Documents
Opinions
Docket activity
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AI analysis generated: Case Briefing
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Opinion added: Armstrong
Sources
Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.