Ron Kelly, Executive Director


Ron Kelly oversees all aspects of independent living, assisted living, memory care support and skilled nursing residences, programs and services for 550 residents at Presbyterian Village North.

Prior to joining Presbyterian Village North, Ron served as President and Chief Financial Officer at Wesley Manor, a retirement community in Indiana, for nearly 20 years. While there, he led the community to top-quality marks in service and satisfaction, and a proven track record of success. He also added two state-of-the-art memory care units to the organization’s services, ultimately positioning the organization as a leader in dementia-related care as well as independent living, assisted living, health care and rehabilitation services.

Ron also previously held positions as a CPA and Staff Accountant at Dahms and Yarian, and at Heinold-Banwart, specializing in audits for not-for-profits. He holds a bachelor’s degree in accounting from Illinois State University.

Heather Ashby, Independent Living/Assisted Living Residential Manager


Dr. Lisa Clark, Medical Director


Dr. Lisa Clark is a graduate of the University of Mississippi Medical School and completed her residency at Presbyterian Hospital in Dallas. For nearly three decades, Dr. Clark has worked at PVN as the community’s medical director. Dr. Clark was drawn to working with seniors because of her passion for improving a person’s quality of life through problem solving. Her responsibilities at PVN include making rounds in the healthcare area, visiting with staff at each nurses’ station and seeing patients that have visits scheduled that day, as well as performing administrative duties. Dr. Clark serves on the Quality Assurance committee, the Patient Safety committee, the Presbyterian Village North board and the Presbyterian Communities and Services board. Dr. Clark is board-certified in Internal Medicine and in Geriatrics, a certification that requires taking an exam every ten years to maintain certification. She is part of a small niche of doctors with a certification in geriatrics. In 2014, she was selected as one of D Magazine’s best doctors in the Dallas area, making this the tenth year she has been on the list either under geriatrics or internal medicine.

Dr. Diana Kerwin, Medical Director – Memory Care Program


Dr. Kerwin is a board-certified internist and medical director at Texas Alzheimer’s and Memory Disorders, a Texas Health Physicians Group practice on the campus of Texas Health Presbyterian Hospital Dallas. She focuses on the development of comprehensive treatment plans for patients and families to prevent cognitive and functional decline in people with Alzheimer’s disease and other cognitive disorders. She has lectured extensively on cognitive aging and Alzheimer’s disease, is a member of the National Board of the Alzheimer’s Association and is chairperson of the Dallas chapter of the Alzheimer’s Association. She completed her fellowship training in geriatrics at Northwestern University’s Feinberg School of Medicine in Chicago, where she was an assistant professor in the Department of Medicine and faculty member of the Cognitive Neurology and Alzheimer’s Disease Center, which is funded by the National Institute on Aging. There, she oversaw clinical trials and research for the development of treatments and diagnostic tools for Alzheimer’s and other cognitive disorders. She served on the national Alzheimer’s Disease Cooperative Studies Steering Committee, as chair of the Medical Safety Committee for the LIFE (Lifestyle Interventions and Independence for Elders) study, and as the academic partner on several community initiatives to improve the care of senior adults with dementia in underserved areas. For more information visit,