HCA Florida West Marion Hospital
CEO Isaiah Zirkle named CEO of HCA Florida Aventura Hospital effective 12 Oct 2026; no West Marion successor or interim named
What happened
- HCA Florida Aventura Hospital named Isaiah Zirkle its chief executive officer, effective 12 Oct 2026; the release is dated 29 Oct 20261
- Zirkle most recently served as CEO of HCA Florida West Marion Hospital in Ocala; he was previously chief operating officer of HCA Florida Ocala and West Marion Hospitals1
- The Aventura release names no successor or interim for the West Marion CEO seat, and no search or search firm1
- The HCA Florida Ocala Hospital leadership page, which lists West Marion roles, names no West Marion CEO or president (checked 30 Oct 2026). It lists a CEO for Ocala Hospital, and a shared COO, CFO and CMO for Ocala and West Marion2
- The West Marion Hospital page describes the hospital as an extension of, and part of, HCA Florida Ocala Hospital3
- Under Zirkle the hospital completed a $120 million expansion; the new tower opened 30 Sep 20254
- A $17 million freestanding emergency room, HCA Florida ER, in western Marion County is under construction and is to open in spring 20275
Seat in play
Our read
HCA's 29 Oct 2026 release says West Marion's CEO, Isaiah Zirkle, became CEO of HCA Florida Aventura Hospital effective 12 Oct 2026, and neither that release nor the Ocala and West Marion leadership page (checked 30 Oct 2026) names a successor or interim, so the West Marion CEO seat appears to be open in practice but unannounced12. The next holder may take on a hospital that opened a $120 million tower on 30 Sep 2025 and has a $17 million freestanding emergency room planned to open in spring 202745.
What could hold it back
- Shown A shared COO for Ocala and West Marion, Lisa Tzanakis, is in post and holds the natural successor seat; Zirkle himself moved from that COO seat to the West Marion CEO seat21.
- Shown West Marion describes itself as an extension of HCA Florida Ocala Hospital, which has its own CEO, so the role could be absorbed into the Ocala leadership rather than refilled32.
- Open Whether HCA fills the seat from its own bench of executives, as it did for Aventura, without an outside firm.
About the decider: Brian Cook
Brian Cook is president of HCA's North Florida Division, which includes West Marion (Mainstreet Daily News, 3 Nov 2022; still listed as division president on the HCA Florida leadership page, checked 30 Oct 2026). Our read: HCA hospital CEOs are chosen at division level, so he is likely to own the choice6.
Questions to ask Brian Cook
- With Isaiah Zirkle now at Aventura, how are you thinking about leadership at West Marion: a dedicated CEO again, or closer integration with Ocala Hospital13?
- With the new tower open and the western Marion County emergency room due in spring 2027, what experience matters most in West Marion's next leader45?