Sarah Woo v. Kaiser Foundation Health Plan, Inc., et al.

Woo · United States District Court for the Northern District of California · January 26, 2026 · No. 23-cv-05063-RFL

Summary

The United States District Court for the Northern District of California grants Sarah Woo’s motion for judgment and denies Kaiser’s cross-motion under Federal Rule of Civil Procedure 52. The court holds that Kaiser and its agents materially misrepresented Woo’s eligibility to participate in pension plans governed by ERISA and concludes that she is entitled to equitable estoppel relief. The action concerns participation in the Kaiser Permanente Employees Pension Plan and its Supplemental Retirement Income Plan.

Holdings

  1. Woo established all elements of her ERISA equitable-estoppel claim: material misrepresentation, reasonable and detrimental reliance, extraordinary circumstances, ambiguity in the relevant plan provisions, and representations involving an interpretation of the plan.
  2. The retirement plan was ambiguous as to whether KFH's determination that an employee was eligible was conclusive and binding and whether the Plan Administrator could override or retroactively reverse that determination.
  3. Estopping defendants from treating Woo as ineligible did not contradict the written plan; it gave effect to the provision making the Participating Company's eligibility determination conclusive and binding.

Questions Presented

  1. Whether Woo established an ERISA equitable-estoppel claim based on defendants' representations that she was eligible to participate in the KPEPP and SRIP.
  2. Whether the plan provisions were ambiguous concerning the effect of the participating company's eligibility determination and the plan administrator's authority to reverse or override that determination.
  3. Whether granting equitable relief would contradict the written terms of the retirement plan.

Disposition

other

Cases Cited (12)

  • McCulloch v. Hartford Life & Accident Ins. Co., No. 19-CV-07716-SI, 2020 WL 7711257, at *7 (N.D. Cal. Dec. 29, 2020)(followed)
  • Kearney v. Standard Ins. Co., 175 F.3d 1084, 1094-95 (9th Cir. 1999)(followed)
  • Opeta v. Nw. Airlines Pension Plan for Cont. Emps., 484 F.3d 1211, 1217 (9th Cir. 2007)(followed)
  • Renfro v. Funky Door Long Term Disability Plan, 686 F.3d 1044, 1054 (9th Cir. 2012)(followed)
  • Dawn v. First Bos. Co., No. CV 08-2671 ABC, 2010 WL 11507720, at *9 (C.D. Cal. Feb. 22, 2010)(followed)
  • Gabriel v. Alaska Elec. Pension Fund, 773 F.3d 945, 956-59 (9th Cir. 2014)(followed and distinguished)
  • Salyers v. Metro. Life Ins. Co., 871 F.3d 934, 940-41 (9th Cir. 2017)(followed)
  • Spink v. Lockheed Corp., 125 F.3d 1257, 1262-63 (9th Cir. 1997)(followed)
  • Hawaiian Paradise Park Corp. v. Friendly Broad. Co., 414 F.2d 750, 756 (9th Cir. 1969)(followed)
  • Randi W. v. Muroc Joint Unified Sch. Dist., 14 Cal. 4th 1066, 1082 (1997)(analogized)

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