Zenith Surgery Center, PLLC, et al. v. Occidental Petroleum Corporation, et al.

District Court, S.D. Texas·Decided August 17, 2026·No. 4:24-cv-03165·Unknown

Opinion

IN THE UNITED STATES DISTRICT COURT August 17, 2026 FOR THE SOUTHERN DISTRICT OF TEXAS Nathan Ochsner, Clerk HOUSTON DIVISION

ZENITH SURGERY CENTER, PLLC, et § al., § § Plaintiffs, § CIVIL ACTION NO. H-24-3165 v. § § OCCIDENTAL PETROLEUM § CORPORATION, et al., § § Defendants. §

MEMORANDUM AND OPINION This dispute arises out of an assignment of healthcare benefits. Zenith Surgery Center, PLLC and Sonazo Anesthesia, PLLC, sued Occidental Petroleum Corporation and Anadarko Petroleum Corporation for denying, or insufficiently reimbursing, the costs of healthcare services provided to two patients who were beneficiaries of Anadarko’s employee health benefits plan. (Docket Entry No. 1). Occidental and Anadarko have moved for summary judgment, arguing that the Plan’s anti-assignment clause precludes this suit; that the ERISA claims are duplicative; and that ERISA preempts the state-law claims. (Docket Entry No. 31). Based on the pleadings, the motion, the record, oral argument, and the applicable law, the court grants in part and denies in part the motion for summary judgment. The reasons are set out below. I. Background This lawsuit involves payment for the care that two healthcare providers, Zenith and Sonazo, provided to beneficiaries of Anadarko’s healthcare plan. (Docket Entry No. 1 ¶ 10).1 In

1 Because the parties have conducted only jurisdictional discovery, some of the facts are taken from the original complaint. (Docket Entry No. 31 at 4). August 2019, Occidental acquired Anadarko and assumed control of the Plan. (Docket Entry No. 31-1 ¶ 4). As relevant here, the Plan contained an anti-assignment clause prohibiting any Plan participant and beneficiary from assigning their rights, benefits, or causes of action. (Docket Entry No. 31-2 § 7.8). This part of the Plan reads as follows: Except as otherwise expressly provided under the terms of a written agreement with a provider of healthcare services or supplies to which the Plan Administrator, the Claims Fiduciary, or other delegate of the Plan Administrator is a named party (a “Plan Agreement”), no rights, causes of action and benefits under the Plan can be assigned or transferred to any person or entity, including, but not limited to, an out-of-network healthcare provider (or any representative or agent with respect to such provider), either before or after healthcare services or supplies are provided to, or on behalf of, a Participant. For purposes of clarification and not limitation, such rights and causes of action that a Participant or other individual may have under ERISA, including, but not limited to, any right to (a) make a claim for Plan benefits, (b) request the Plan document or other documents related to the Plan or a claim for benefits, (c) file an appeal of a denied claim for Plan benefits, or (d) file a lawsuit under ERISA or other applicable law.

In the absence of a Plan Agreement which specifically provides for assignment of the Participant’s benefits and/or rights under the Plan (i.e., is not merely an agreement between the Participant and the provider or its representative or agent), the Plan Administrator and Claims Fiduciary, as applicable, each reserve the unilateral right and discretion to elect to make any benefit payment under the Plan directly to the provider, the Participant, or to another designated person or entity, with or without the Participant’s authorization, with each such payment being made on behalf of the Participant, and not to such payment recipient in its, his or her own right. Moreover, if the Plan Administrator or Claims Fiduciary, as applicable, elects to make any such direct payment, it shall not constitute a waiver by the Plan Administrator or Claims Fiduciary of the anti-assignment provisions of this Section 7.8. [. . .]

(Id.). The anti-assignment provision was also explained in the Summary Plan Description (“SPD”). (Docket Entry No. 31-3 § 10.8). In 2020, Zenith and Sonazo provided medical treatment to two Plan beneficiaries, Jeff Reimer and Sandra Alton.2 (Docket Entry No. 1 ¶ 11). United was the Plan fiduciary and claims

2 Sonazo provided the anesthesia services at Zenith’s facility. (Docket Entry No. 32-1 ¶ 2). 2 administrator. (Docket Entry No. 31-1 ¶¶ 7, 8).3 Before providing treatment, Zenith called United to confirm that the patients and the proposed procedures were covered. (Docket Entry No. 32-1 ¶¶ 3, 4). Zenith asserts that at no point during these calls did United disclose the anti-assignment provision or provide Zenith with the Plan documents. (Id.). Reimer and Alton executed assignments of benefits to Zenith in 2020 as part of the registration process to receive treatment.

(Id. ¶ 5; Docket Entry Nos. 32-2, 32-3). After treating Alton and Reimer, Zenith and Sonazo submitted claims for reimbursement to United for approximately $1.4 million. (Docket Entry No. 32-1 ¶ 7). In early 2022, United began denying the claims on the ground that coverage had been cancelled or terminated. (Id.). Zenith then submitted formal appeals to the defendants’ Administrative Committee. (Id. ¶ 9). In November 2022, the Committee issued a final determination letter denying the claim for services provided to Reimer based on “Timely Filing.” (Docket Entry No. 32-7 at 3). The final determination letter stated that “the Anadarko Petroleum Health Benefits Plan prohibits an assignment of claims and any attempt to assign a claim is void.” (Id. at 2). The letter also stated

that “[i]f you do not agree with the decision of the Committee, you may bring legal action to seek the benefits sought in your Claim.” (Id. at 2–3). Anadarko sent another letter to Zenith (and Sonazo, which had now become involved in the putative litigation) in August 2023, explaining the anti-assignment provision. (Docket Entry No. 31-8). In August 2024, Zenith and Sonazo sued Anadarko and Occidental in this court. (Docket Entry No. 1). They asserted five claims: (1) denial of benefits under 29 U.S.C. § 1132(a)(1)(B),

3 On December 31, 2020, Anadarko terminated its contract with United, but United continued administering claims for services provided before January 1, 2021, as long as those claims were submitted in accordance with applicable procedures. (Docket Entry No. 31-1 ¶ 8).

3 (2) breach of fiduciary duty under 29 U.S.C. § 1132(a)(3), (3) breach of contract, (4) promissory estoppel, and (5) quantum meruit. (Id. ¶ 18–36). The defendants moved to dismiss in October 2024. (Docket Entry No. 10). The court heard argument on the motion, (Docket Entry No. 20), ordered supplemental briefing, (Docket Entry Nos. 23, 26), and held another hearing focused on the effect of Angelina Emergency Medicine Associates PA v. Blue Cross and Blue Shield, 156

F.4th 505 (5th Cir. 2025), (Docket Entry No. 30). The court terminated the motion to dismiss, ordered the parties to complete jurisdictional discovery, and ordered Anadarko and Occidental to file any summary judgment motion no later than November 21, 2025. (Id.). On November 21, 2025, Anadarko and Occidental filed their motion for summary judgment. (Docket Entry No. 31). Zenith and Sonazo filed a response. (Docket Entry No. 32). The court held oral argument on the motion for summary judgment. (Docket Entry No. 33). II. The Legal Standard “Summary judgment is appropriate where ‘the movant shows that there is no genuine dispute as to any material fact and the movant is entitled to judgment as a matter of law.’”

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Zenith Surgery Center, PLLC, et al. v. Occidental Petroleum Corporation, et al., (S.D. Tex. 2026).

Zenith Surgery Center, PLLC, et al. v. Occidental Petroleum Corporation, et al. (Zenith Surgery Center, PLLC, et al. v. Occidental Petroleum Corporation, et al.) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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