Gill is the CEO of Bethesda NEWtrition & Wellness Solutions, a multidisciplinary primary care and wellness practice. Previously, she was a private practice nutrition consultant for more than 20 years and food and nutrition services director and outpatient dietitian at health care centers in Maryland. Gill is a past president of the Maryland Academy of Nutrition and Dietetics; a past member of the national Academy's Nutrition Services Payment Committee; and the Maryland affiliate's public policy coordinator.
She was a member of the Western Montgomery County Citizens Advisory Board and co-chair of the board's Quality of Life Committee; a member of Montgomery County's Seniors Health and Wellness Advisory Board; and president of the Seven Locks elementary school PTA. Gill served as the Academy's treasurer in 2021-2022. She is a graduate of Punjab University in India and earned a graduate degree from Punjabi University.
Gill earned an MBA from the University of Maryland – University College.