Board of Directors

Jennifer Hoock MD MPH

Director of Development

Dr. Hoock is a graduate of Duke University Medical School and completed her MPH at the University of Washington. She has devoted her career to teaching Family Medicine residents and faculty. She is currently Associate Director at Group … Read More

Peggy Visher


Peggy Visher received her nursing training at Columbia University. After working several years as a RN in Alaska she returned to Yale University to be trained as a Certified Nurse Midwife. Helping women during their childbearing years is … Read More

Gary Christophersen


Gary is a retired former public company CEO.   He joined the Board after volunteering with a medical team in Guatemala and being inspired by the dedication of the team and the services provided in the rural villages.  He hopes to be able … Read More

Teresa Wallace MD

Board Member

Dr. Wallace is a graduate of New York Medical College. She has spent most of her career teaching residents in Family Medicine and is currently the Associate Director at Valley Family Medicine Residency Program in Renton WA. She holds an … Read More

Diana Orellana

Board Member / Cultural Liaison

Diana Orellano is a native Guatemalan who was raised as a child in Guatemala.   Diana is serves as the cultural ambassador to the board to ensure alignment of strategic policies and objectives with the different regional cultures within … Read More

Nicole Mesick, BSN

Board Member

Nicole has traveled on medical missions with GVH on multiple trips and has been a valuable and dedicated player in our organization for since her first trip.  Nicole also volunteers as trip manager while she manages her full time career … Read More