Court Compels Arbitration Under Equitable Estoppel Principles in Health Insurance Reimbursement Dispute

The U.S. District Court for the Northern District of Texas recently compelled arbitration under equitable estoppel principles in a dispute between a group of hospitals and a medical insurer.

A group of hospitals, collectively known as Medical City, filed suit against Anthem Health Plans of Virginia Inc., doing business as Anthem Blue Cross and Blue Shield. They alleged that Anthem breached an agreement with a different Anthem entity by failing to reimburse care they claimed was medically necessary but that Anthem claimed was either not necessary or that required prior authorization that was not obtained. Anthem moved to compel arbitration under equitable estoppel principles, arguing that it could invoke the arbitration clause in the agreement even though that agreement was signed by a different Anthem entity.

The district court agreed and compelled arbitration. It explained that a “third-party non-signatory may compel arbitration under the doctrine of equitable estoppel when the signatory raises allegations of substantially interdependent and concerted misconduct by both the non-signatory and one or more signatories to the contract.” The court concluded that standard was met. “Medical City’s claims ar[o]se out of and relate[d] directly to the Agreement.”

Columbia Hospital at Medical City Dallas Subsidiary, L.P. v. Anthem Health Plans of Virginia Inc., No. 3:25-cv-00689 (Jan. 6, 2026).