Meet Our Board and Leadership Committee

Meet Our 2025 Board Members and Leadership Committee

Board Position

Name

Facility

Email

President

Jennifer Maxwell MHA, MSN, CIC

Banner University Medical Center - Phoenix

jennifer.maxwell@bannerhealth.com

President Elect Kristin Grimes MSN, RN, CIC

Mount Graham Medical Center

Kristin.grimes@mtgraham.org

Past President

Linus Nienstadt MPH, RN, CIC

Northern Arizona Healthcare

Linus.Niestadt@nahealth.com

Treasure

Gretchen Ange BSN, RN, CIC

HonorHealth

gange@honorhealth.com

Treasure Elect

Milena Walker MD, CIC

Banner Health

Milena.walker@bannerhealth.com

Membership and Recording Secretary

Mariana Singletary MD, MPH, MBA, CIC

Banner Desert Medical Center

Mariana.singletary@bannerhealth.com

Member at Large

Nicholas Schweers MPH, CIC

 

Mary Sibulsky

momsibulsky@gmail.com

 

Rebecca Ragar MPH, MLS (ASCP), CIC, FAPIC

HonorHealth

rragar@honorhealth.com

Nominating Committee

Martin Caudillo

HonorHealth

mcaudillo@honorhealth.com 

 

Brianne McCombie BSN, RN, CIC

Summit Healthcare

brianne.mccombie@summithealthcare.net

 

Janet Acosta Onvida Health

JAcosta1@onvidahealth.org 

Web Master

Rhianna Kozinski MPH, CIC Banner Health

Rhianna.kozinski@bannerhealth.com


Vote for the 2026 chapter 88 leadership board by October 20
 

 

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