Leadership

Board of Directors

Global leaders in surgery, public health, finance, and policy who guide the strategy and governance of the G4 Alliance.

Permanent Council Officers

4 officers

Dr. Neil R. Wetzig

President of the Permanent Council

AO; MBBS; FRACS; FRCS(Eng); FCS(ECSA). Australian General Surgeon and surgical training advisor at HEAL Africa, Goma, DRC.

Dr. Richard Henker

Vice President of the Permanent Council

PhD, CRNA, FAANA, FAAN. Professor at the University of Pittsburgh School of Nursing, Department of Nurse Anesthesia.

Dr. Kerry Vaughan

Secretary of the Permanent Council

Global surgery advocate, pediatric neurosurgeon and assistant professor of neurosurgery at Barrow Neurological Institute.

Dr. Bisola Onajin-Obembe

Immediate Past President of the Permanent Council

MBBS, FWACS, MBA, PhD. Consultant Anaesthesiologist, University of Port Harcourt Teaching Hospital, Nigeria.

Board of Directors

15 members

Gail Rosseau

Chairman, Board of Directors

Clinical Professor of Neurosurgery at George Washington University; Adjunct Professor of Global Neurosurgery at Barrow Neurological Institute.

Stephanie Murphy

Treasurer, Board of Directors

Significant experience in accounting and nonprofit financial management; joined the Board in May 2025.

Charity Chenge

Secretary, Board of Directors

MBBS, MPH, MSc, DrPH. Public Health Specialist and Health Systems Strategist with 25 years of progressive global experience.

Dr. Evelyn Abayaah-Issah

Member, Board of Directors

Distinguished global healthcare leader with 20+ years in business development, strategy and international market expansion.

Elizabeth Ashbourne

Member, Board of Directors

Executive Director of PQMD; 17 years at the World Bank in private sector partnerships, global public health and health information.

Ruben Ayala

Member, Board of Directors

M.D., MSC. Public health physician from Panama with 30+ years in advocacy and humanitarian assistance; Operation Smile CPAO.

Dr. Alfredo Enrique Borrero Vega

Member, Board of Directors

Ecuadorian neurosurgeon and politician with training from Harvard, Berlin and the Catholic University of Cuenca.

W. Kenneth Davis, Jr.

Member, Board of Directors

Leading healthcare attorney ranked by Chambers USA; trusted legal advisor on transactions and regulatory matters.

Laura Hoemeke

Member, Board of Directors

Global health consultant with 15 years in Francophone Africa; president of Hoemeke Global; adjunct professor at UNC Gillings.

Dr. Tariq Khan Hashim

Member, Board of Directors

Consultant Neurosurgeon at Northwest General Hospital and Research Center, Peshawar, specializing in skull base surgery.

Jimmy Kolker

Member, Board of Directors

Senior Advisor to the Bureau of Global Health Security and Diplomacy at the U.S. Department of State.

Dr. Chad Perlyn

Member, Board of Directors

Executive Vice President and Chief Medical Officer at Nova Southeastern University; professor at NSU's Patel College of Allopathic Medicine.

John B. Sampson

Member, Board of Directors

Critical care anesthesiologist at Johns Hopkins; Director of JHU-GAPP; founding president of the Institute of Global Perioperative Care.

Ajay Easo

Member, Board of Directors

Global Managing Director at Accenture.

Anita Singh

Member, Board of Directors

Member of the G4 Alliance Board of Directors.

Emeritus Board

1 member

Honoring former directors whose enduring service and leadership continue to shape the G4 Alliance.

Daniel Peterson

Emeritus Board Member

Retired principal of ZS Associates; CFO/COO of Loyola Academy. Former Vice Chairman, Treasurer, and Interim Executive Director of the G4 Alliance.