Meet Our Physician Liaisons

Herbert Bevan, MD

Herb Bevan, MD
CHKD physician liaison

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Dr. Herb Bevan joined the CHKD physician liaison team in November of 2016.

Previously, Dr. Bevan was a practicing hematologist and oncologist at CHKD for 28 years and served a two-year term as president of the CHKD professional staff in 2014 and 2015. Dr. Bevan received "Top Doc" designation from Coastal Virginia Magazine in 2016 during his final year with CHKD's cancer and blood disorders program.

A Kansas native and University of Kansas graduate, Dr. Bevan earned his medical degree from Washington University and completed his residency and fellowships at San Diego Naval Hospital. He joined CHKD after a nine-year stint in the U.S. Navy, serving  his final two years in the military at Portsmouth Naval Hospital.

Dr. Bevan is a founding member of Children's Specialty Group. 

Physician Liaison-Jill Armstrong

Jill Armstrong, RN
CHKD physician liaison
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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
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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.