Meet Our Physician Liaisons

Physician Liaison-Jill Armstrong

Jill Armstrong, RN
CHKD physician liaison

Jill Armstrong, RN, joined the CHKD physician liaison team in March of 2020.

As a nursing professional for the past 17 years, Jill has focused on optimizing patient care in increasingly demanding and responsible positions in the emergency department, cardiac catheterization lab, home healthcare, and for the last 10 years in CHKD's endocrinology department.

Jill’s most recent role as a CHKD RN Clinical Supervisor honed her ability to effectively work with physicians while managing and mentoring nursing staff to provide effective, compassionate care to patient/family populations. She looks forward to further utilizing her knowledge and expertise as she continues to serve the CHKD community.

Marc Tsou, MD

Marc Tsou, MD
CHKD physician liaison

Dr. Tsou, a pediatric gastroenterologist at CHKD for 32 years, is now a physician liaison at CHKD.

He grew up in Michigan and attended the University of Michigan, followed by medical school at Wayne State University in Detroit. He did his residency in pediatrics at the University of Michigan's C. S. Mott Children's Hospital in Ann Arbor and served as chief resident there. He did his fellowship in pediatric gastroenterology at the University of Nebraska in Omaha.

Dr. Tsou joined CHKD in 1991 and was named the division director of gastroenterology in 1997. He served in that capacity for 25 years until his retirement in December 2022.

He was a founding member of Children's Specialty Group and served as vice president from 2015 to 2021.

He was voted a top doctor by Hampton Roads magazine and Coastal Virginia magazine. He also is a recipient of the CSG Excellence in Physician Leadership Award and the Department of Pediatrics Reuben Rohn Leadership Award.

Dr. Tsou and his wife have three children.