Capitol Travel Medicine is a member of the International Society of Travel Medicine (ISTM). Our team offers patients many years of combined healthcare experience. Nurse Practioner Tanya Chadwell operated and managed the International Health Services Clinic for Georgetown University Medical Center at Ballston.

Tanya Chadwell, Founder, has been a Family Nurse Practitioner for 17 years, most recently with Georgetown University Medical Center in Ballston, Virginia. Here she co-managed the International Health Travel Service. She was awarded Nurse Practitioner of the Year in 1999 with MedStarís Health in Baltimore. Tanya graduated from the University of Manitoba with a Bachelors Degree in Nursing and received a Masters in Nursing from Marymount University, Virginia. Tanya is American Nurses Credentialing Center (ANCC) certified and is licensed by the state of Virginia.

Susan Wallace, Executive Director and Founder, has been a Medical Technologist and Lab Manager at Georgetown University Medical Center in Ballston, Virginia, and with Arthritis and Rheumatism Associates in Silver Spring, Maryland. Susan graduated from the University of South Carolina with Bachelors Degrees in Biology and Secondary Education and in Medical Technology from the Medical University of South Carolina.

Yvonne Knauff is dually licensed and certified as a Family and Adult Nurse Practitioner with 35 years experience in both public and private sectors. She joined Capitol Travel Medicine in 2005 after practicing in a variety of positions in Public Health and Infectious Diseases. Yvonne graduated from Capital University with a Bachelor of Science in Nursing degree, holds a Master of Public Health degree from the University of North Carolina and, while on the faculty of Duquesne University, completed her Primary Care Nurse Practitioner Certificate at the University of Pittsburgh. Awards include West Virginia Public Health Nurse of the Year, Virginia Public Health Nurse of the Year, and Virginia Nurses Association Nurse of the Year. She has extensive international travel experience.