Explore Sigma Nursing’s global regions

Sigma Nursing’s global community spans more than 100 countries and territories, connecting nurses through 600+ chapters around the world. Our regional structure helps members build local relationships while staying connected to a global community committed to nursing excellence.

Sigma global regions map, transparent background.

Get Involved

Volunteers are integral to Sigma's success. Check out all of our volunteer opportunities and apply!

Learn More

Regional Chapters Coordinating Committee (RCCC)

Each Sigma Nursing region is supported by an elected, volunteer Regional Coordinator (RC) who serves a two-year term to help strengthen communication, collaboration, and engagement among chapters within the region.

Together, the 21 RCs form the Regional Chapters Coordinating Committee (RCCC), one of Sigma Nursing’s three standing Board committees. The RCCC works with headquarters staff to support chapter leaders, strengthen regional collaboration, and advance Sigma's mission around the world.

Interested in serving your region? Regional Coordinator positions are filled through Sigma Nursing’s election process. The next election cycle will be held before the 2027 Biennial Convention.

2025-2027 Regional Coordinators

Africa Region: Sylvia Oger Ofosu Dwamena, PhD, MN, RN, BSC, PGDE, FGCNM

Asia Region: Rick Kwan, PhD, RN, FHKAN, FAAN

Europe Region: Marie-Louise Luiking, PhD

Latin America/Caribbean Region: Francisca Marquez-Doren, PhD, MNSc

Middle East Region: Wafaa Bin Ali, PhD, MSN, BSN, RN

Oceania Region: Kathleen Peters, PhD, GradCert (Higher Education), BN (Hons), RN

North America

Region 1: Jessica Nishikawa, DNP, APRN, FNP-C

Region 2: Clarissa Waletzko, PhD, RN, EBPC

Region 3: Krystal Davis, EdD, MSN, RN, CHSE

Region 4: Sara Thimmes, MSN, RN

Region 5: Sue Yun Fowler, MA, RN

Region 6: Carmen Vela, DNP, RN, CNE

Region 7: Karen Worthy, PhD, MPH, RN, CNE, CNEcl

Region 8: Priscilla Simms-Roberson, DNP, APRN, NP-C, SANE-A

Region 9: Daniel Arturo Guerrero Gaviria, BSN

Region 10: Sandra Maxwell, MN, BScN, RN

Region 11: Barbara Dewhirst, PhD, MSN, RN, CNL, CHSE

Region 12: Tami Jakubowski, DNP, CPNP-PC, CNS

Region 13: Charlene Whitaker-Brown, DNP, MSN, FNP, PMHNP-BC

Region 14: Amita Avadhani, PhD, DNP, NEA-BC, CNE, DCC, ACNP-BC, AGNP-C, CCRN, FAANP, FCCM, FNAP

Region 15: Jason Kirchick, MPH, MSN, RN, CNL, MEDSURG-BC