Meet Our Board and Leadership Committee

Kristin Grimes, MSN, RN, CIC

President

Chapter Legislative Representative

Kristin is an experienced nurse leader and Infection Preventionist serving as Nurse Manager for Med/Surg and ICU at Mount Graham Regional Medical Center and 2026 President of the APIC Grand Canyon Chapter, known for her outcomes-driven leadership and award-winning nursing education initiatives.

Morgan Baker, MSN, RN, CIC

President Elect

Morgan is a Regional Director of Infection Prevention with oversight across acute care, ambulatory, and specialty settings. She leads system-wide initiatives in infection prevention policy, CAUTI, SSI, and quality improvement, with a strong focus on multidisciplinary collaboration and data-driven action to improve patient outcomes.

Linus Nienstadt, RN, MPH, CIC

Past President

Linus is an experienced infection prevention and public health professional currently serving as an Infection Preventionist with Northern Arizona Healthcare, bringing decades of experience across laboratory research, epidemiology, communicable disease control, and infectious disease program leadership at the state, county, and hospital levels.

Gretchen Ange, RN, BSN, CIC

Treasurer

Gretchen is an experienced Infection Prevention Program Coordinator for the HonorHealth system with over 30 years of nursing experience, specializing in HAI and HCP data reporting, long-standing APIC leadership as Chapter Treasurer, and co-founding the APIC IPC Informatics section to advance national electronic surveillance standards.

Brianne McCombie BSN RN CIC

Treasurer Elect

Brianne McCombie is the Infection Prevention Organizational Manager at Summit Healthcare, with oversight across acute care, ambulatory clinics, and both inpatient and outpatient surgery settings. She leads organization-wide infection prevention strategy, surveillance, policy implementation, and quality improvement initiatives, with a strong focus on multidisciplinary collaboration and practical, data-informed approaches to improving patient and staff safety.

Mariana Singletary MD MPH MBA CIC

Recording Secretary

Martin Caudillo, MPH, CHIPP-B, a-IPC, CIC

Webmaster/Social Media Administrator

Nominating Committee

Martin is a Senior Infection Preventionist at HonorHealth supporting multiple medical centers, bringing experience in acute care, public health research, and regulatory oversight, with advanced training in applied epidemiology, multiple infection prevention certifications, and active leadership roles within the APIC Grand Canyon Chapter.

Heidi A. Campas, RN, BSN, CIC

Member at Large

Heidi is an experienced Infection Preventionist with over 30 years in healthcare, she brings a diverse background spanning emergency and trauma care, multiple ICU settings, quality and performance improvement, and leadership roles at Kaiser Permanente and Banner Health, with active involvement in APIC and certification in infection prevention.

Constance J Cutler, MS, BS, BSN, RN, CIC, FSHEA, FAPIC

Member at Large

Constance is a veteran Infection Preventionist with over 45 years of experience across healthcare settings nationwide, combining advanced training in biology and nursing with national leadership, scholarly contributions, and long-standing service to APIC and the Certification Board of Infection Control.

Mary Sibulsky, RN

Mary is an experienced ambulatory care and infection prevention professional with a diverse clinical background and long-standing APIC involvement, recognized for her leadership in quality assurance, disaster response, global health service, and her commitment to mentoring and engaging infection preventionists in the ASC setting.

Janet Acosta

Nominating and Awards Committee

Larissa Ditmore

Nominating and Awards Committee

Larissa is a seasoned nurse with 25 years of experience across acute care, public health, and infection prevention, currently serving as Manager of Infection Prevention, Employee Health, and Education at White Mountain Regional Medical Center, recognized with an APIC CAH Scholarship Grant and earning her CIC in 2025.

Michelle Poimboeuf, MPH

Educational Committee

Michelle is an epidemiologist with several years of experience in academic health systems and public health programs, specializing in surveillance-driven research, clinical data analysis, workforce training, and infection prevention education, and she serves on the APIC Grand Canyon Chapter 88 Education Committee.

Linda Nikpour, RN, DNP, CIC

Educational Committee

Linda is a registered nurse with a Doctorate in Nursing Practice and CBIC certification in Infection Prevention (2025–2030), with extensive experience in academic nursing education and population health leadership and serves on the APIC Grand Canyon Chapter Education Committee supporting member and community education.