In addition to her medical practice, Dr. Walia has active staff privileges at Medical City Plano since 1985. She is active in the community and has served on numerous hospital committees, including Pharmacy and Therapeutics, Infection Control, Medical Records, Cancer Committee, Quality Review Committee, Peer Review, and the Executive Committee. She has served as Chief of Family Practice (1992-1993, 2019, and 2023) and Chairperson for the Ethics Committee (2015-2019). Dr. Walia also currently serves on the Board of the Plano Physicians Network. She is a strong advocate for individuals with mental retardation and has served on the Advisory Board of the Mental Health and Mental Retardation Agency in addition to having been a consulting physician for the Diagnosis and Evaluation Team of MHMR for several years. She has been on the Advisory Board for special education in the Plano Independent School District and has also served as treasurer of the Red River Chapter, a local chapter of the Texas Academy of Family Physicians. Recently, Dr. Walia was on the Leadership Advisory Board for HCA-Plano from 2014-2019.