ER Addison, LLC, et al. v. Aetna Health, Inc., et al.

CourtDistrict Court, N.D. Texas
DecidedApril 8, 2026
Docket3:25-cv-02861
StatusUnknown

This text of ER Addison, LLC, et al. v. Aetna Health, Inc., et al. (ER Addison, LLC, et al. v. Aetna Health, Inc., et al.) is published on Counsel Stack Legal Research, covering District Court, N.D. Texas primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
ER Addison, LLC, et al. v. Aetna Health, Inc., et al., (N.D. Tex. 2026).

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE NORTHERN DISTRICT OF TEXAS DALLAS DIVISION ER ADDISON, LLC, et al., § § Plaintiffs, § § VS. § Civil Action No. 3:25-CV-2861-D § AETNA HEALTH, INC, et al., § § Defendants. §

MEMORANDUM OPINION AND ORDER In this removed action by plaintiffs ER Addison, LLC, ER Hulen, LLC, ER Coit, LLC, and ERNearMe Plano, LLC (collectively, “ER”)—free-standing emergency centers (“FECs”)—against defendants Aetna Health, Inc., Aetna Health Management, LLC, and Aetna Life Insurance Company (collectively, “Aetna”)—heath insurance providers—Aetna moves to dismiss under Fed. R. Civ. P. 12(b)(1), 12(b)(2), and 12(b)(6). For the reasons that follow, the court grants Aetna’s motion in part and denies it in part. I This lawsuit arises from Aetna’s alleged underpayment for emergency healthcare services that ER provided on an out-of-network basis to Aetna’s insureds.1 In a prior version 1In deciding Aetna’s motion to dismiss, the court construes ER’s state-court original petition in the light most favorable to ER, as the nonmovant, accepts as true all well-pleaded factual allegations, and draws all reasonable inferences in ER’s favor. See, e.g., In re Katrina Canal Breaches Litig., 495 F.3d 191, 205 (5th Cir. 2007). “The court’s review [of a Rule 12(b)(6) motion] is limited to the complaint, any documents attached to the complaint, and any documents attached to the motion to dismiss that are central to the claim and referenced by the complaint.” Lone Star Fund V (U.S.), L.P. v. Barclays Bank PLC, 594 F.3d of this lawsuit, ER Addison, LLC v. Aetna Health Inc., No. 3:24-CV-1816-D, ER sued Aetna under ERISA2 and Texas law, seeking payment in full for the services it rendered in several of its FECs. The court dismissed ER’s suit because it failed to prove that ER had standing

to assert the claims of Aetna’s insureds.3 ER Addison, LLC v. Aetna Health Inc. (“ER Addison I”), 2025 WL 1869591, at *2-3 (N.D. Tex. July 3, 2025) (Fitzwater, J.). After the court filed its decision in ER Addison I, a panel of the Fifth Circuit decided Angelina Emergency Medicine Associates PA v. Blue Cross & Blue Shield of Alabama, 156 F.4th 505 (5th Cir. 2025),4 which ER contends resulted in a “change in intervening law.”

Pet. (ECF No. 1-2) at 1 n.1. ER re-filed its lawsuit against Aetna, this time in state court.

383, 387 (5th Cir. 2010). A Rule 12(b)(1) motion can mount either a facial or factual challenge. See, e.g., Hunter v. Branch Banking & Tr. Co., 2013 WL 607151, at *2 (N.D. Tex. Feb. 19, 2013) (Fitzwater, C.J.) (citing Paterson v. Weinberger, 644 F.2d 521, 523 (5th Cir. May 1981)). When a party makes a Rule 12(b)(1) motion without including evidence, the challenge to subject matter jurisdiction is facial. Id. The court assesses a facial challenge as it does a Rule 12(b)(6) motion in that it “looks only at the sufficiency of the allegations in the pleading and assumes them to be true. If the allegations are sufficient to allege jurisdiction, the court must deny the motion.” Id. (citation omitted) (citing Paterson, 644 F.2d at 523). 2Employee Retirement Income Security Act of 1974, 29 U.S.C. §§ 1001-1461. 3The court dismissed ER’s federal ERISA claim without prejudice under Rule 12(b)(1), ER Addison, LLC v. Aetna Health Inc., 2025 WL 1869591, at *2-3. (N.D. Tex. July 3, 2025) (Fitzwater, J.), and declined to exercise supplemental jurisdiction over ER’s state- law claims, id. at *3. 4Angelina Emergency Medicine Associates PA v. Blue Cross & Blue Shield of Alabama, 150 F.4th 393(5th Cir. 2025), was decided on August 8, 2025. ER filed its petition in this case on September 2, 2025. On October 23, 2025, after a panel rehearing, the previously-issued opinion in Angelina was withdrawn, and the panel substituted a new opinion, which is cited here. - 2 - ER’s state-court original petition (its operative pleading) identifies between 3,452 and 3,620 claims that it alleges Aetna has underpaid. ER asserts a federal-law claim under ERISA (count one); a state-law claim with respect to “Non Self-Funded ERISA Plan Claims” for

breach of contract (count two); a negligent misrepresentation claim (count three); an unjust enrichment claim (count four); a claim for declaratory judgment (count five); and a claim for attorney’s fees and costs (count six). Aetna removed the case to this court and now moves under Rules 12(b)(1), 12(b)(2), and 12(b)(6) to dismiss some of the 3,152 claims that it has

identified as being processed and administered by Aetna. ER opposes the motion, which the court is deciding on the briefs, without oral argument. II The court begins by recounting the pertinent standards for deciding a motion to dismiss based on Rule 12(b)(1) or 12(b)(6).

A “Federal courts are courts of limited jurisdiction, and absent jurisdiction conferred by statute, lack the power to adjudicate claims.” Stockman v. Fed. Election Comm’n, 138 F.3d 144, 151 (5th Cir. 1998). A Rule 12(b)(1) motion can mount either a facial or factual challenge. See, e.g., Hunter v. Branch Banking & Tr. Co., 2013 WL 607151, at *2 (N.D.

Tex. Feb. 19, 2013) (Fitzwater, C.J.) (citing Paterson v. Weinberger, 644 F.2d 521, 523 (5th Cir. May 1981)). When a party makes a Rule 12(b)(1) motion without including evidence, the challenge to subject matter jurisdiction is facial. Id. The court assesses a facial challenge as it does a Rule 12(b)(6) motion in that it “looks only at the sufficiency of the allegations - 3 - in the pleading and assumes them to be true. If the allegations are sufficient to allege jurisdiction, the court must deny the motion.” Id. (citation omitted) (citing Paterson, 644 F.2d at 523). “The burden of proof for a Rule 12(b)(1) motion to dismiss is on the party

asserting jurisdiction. Accordingly, the plaintiff constantly bears the burden of proof that jurisdiction does in fact exist.” Ramming v. United States, 281 F.3d 158, 161 (5th Cir. 2001) (per curiam) (citations omitted). B

Under Rule 12(b)(6), the court evaluates the pleadings by “accept[ing] ‘all well-pleaded facts as true, viewing them in the light most favorable to the plaintiff.’” In re Katrina Canal Breaches Litig., 495 F.3d 191, 205 (5th Cir. 2007) (quoting Martin K. Eby Constr. Co. v. Dall. Area Rapid Transit, 369 F.3d 464, 467 (5th Cir. 2004)). To survive Aetna’s motion to dismiss, ER must allege enough facts “to state a claim to relief that is

plausible on its face.” Bell Atl. Corp. v. Twombly, 550 U.S. 544, 570 (2007). “A claim has facial plausibility when the plaintiff pleads factual content that allows the court to draw the reasonable inference that the defendant is liable for the misconduct alleged.” Ashcroft v. Iqbal, 556 U.S. 662, 678 (2009). “The plausibility standard is not akin to a ‘probability requirement,’ but it asks for more than a sheer possibility that a defendant has acted

unlawfully.” Id.; see also Twombly, 550 U.S. at 555 (“Factual allegations must be enough to raise a right to relief above the speculative level[.]”).

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ER Addison, LLC, et al. v. Aetna Health, Inc., et al., Counsel Stack Legal Research, https://law.counselstack.com/opinion/er-addison-llc-et-al-v-aetna-health-inc-et-al-txnd-2026.