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577 P.3d 457
Ariz. Ct. App.
2025
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Background

  • Maricopa County Special Health Care District (Valleywise) is a public entity responsible for county hospitals.
  • Peggy Jackson, as legal guardian of Matthew Heinreich, alleged that Valleywise failed to provide necessary medication to Heinreich, resulting in serious injuries.
  • Jackson originally filed a claim for medical negligence and later amended her complaint to add a claim under Arizona's Adult Protective Services Act (APSA).
  • Valleywise moved to dismiss the APSA claim, arguing it was not a proper defendant under APSA and that the notice of claim was deficient.
  • The trial court denied Valleywise's motion to dismiss; Valleywise then sought special action relief (an interlocutory appellate procedure).

Issues

Issue Plaintiff's Argument Defendant's Argument Held
Whether Valleywise, as a special health care district, is subject to suit under APSA Valleywise is an "enterprise" or "person" under APSA and thus can be sued Political subdivisions like Valleywise are not "persons" or "enterprises" under APSA, referencing Braden Valleywise is subject to suit under APSA; the statute's plain language allows suit "in all actions."
Whether Jackson's notice of claim sufficiently put Valleywise on notice of an APSA claim The facts provided were enough for Valleywise to investigate all potential liabilities, including under APSA Notice failed to reference APSA or its terms, thus was insufficient Notice was sufficient as it included enough factual detail for Valleywise to investigate an APSA claim

Key Cases Cited

  • Estate of Braden ex rel. Gabaldon v. State, 228 Ariz. 323 (Ariz. 2011) (held the State is not a 'person' or 'enterprise' under APSA; distinguished regarding political subdivisions here)
  • Falcon ex rel. Sandoval v. Maricopa Cnty., 213 Ariz. 525 (Ariz. 2006) (notice of claim requirements focus on factual sufficiency, not legal theories)
  • Coleman v. City of Mesa, 230 Ariz. 352 (Ariz. 2012) (standard for dismissal under Rule 12(b)(6))
  • Deer Valley Unified Sch. Dist. No. 97 v. Houser, 214 Ariz. 293 (Ariz. 2007) (statutory bar for non-compliant notice of claim)
  • City of Mesa v. Ryan, 258 Ariz. 297 (Ariz. 2024) (review of motion to dismiss, purpose of notice statute)
Read the full case

Case Details

Case Name: Maricopa v. Jackson
Court Name: Court of Appeals of Arizona
Date Published: Aug 7, 2025
Citations: 577 P.3d 457; 1 CA-SA 25-0068
Docket Number: 1 CA-SA 25-0068
Court Abbreviation: Ariz. Ct. App.
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    Maricopa v. Jackson, 577 P.3d 457