PEDSCARDIOLOGY.COM - Key Persons


Ashish B. Madhok

Job Titles:
  • FACC, FASE

Ashok V. Mehta

Board certified in both Pediatrics and Pediatric Cardiology. Ashok Mehta retired in 2019 after lost 40 years in practice. Dr. Ashok Mehta is a nationally known senior Pediatric Cardiologist in the Tri-City area. He is board certified in Pediatrics and Pediatric Cardiology. He received his Pediatric Cardiology training at the University of Miami in 1981. He has also spent a year of special research in electrical problems of the children's heart. He has published 80 articles and given over 100 presentations in various national and international journals and meetings. Dr. Mehta specializes in invasive and non-invasive pediatric cardiology. For the last 25 years, he has performed Balloon Angioplasty and Vavlvuloplasty in children and young adults. He is an internationally recognized expert in the management of children with heart rhythm problems (palpitation, irregular rhythm), syncope, tachycardia and heart defects. He is also an expert in echocardiography in fetus to young adults. Other interests include management of blood pressure, cholesterol, fainting, athletes with heart problems and chest pain, etc. In addition to his busy medical practice, he is very active in the community. He was the Chairman of the Department of Pediatrics at Holston Valley Hospital and Medical Center in 2002-2003, board member of the American Heart Association, Girls Inc. of Kingsport, and RIACC Hall of Worship and community center. His research work, community lectures, and volunteer services; will not keep him from traveling around the world with his family whenever he has a chance. Golf is his favorite sport. Physical fitness has become one of his favorite activities.

Brooke Griffith

Job Titles:
  • Certified Pediatric Nurse Practitioner
Brooke Griffith is a Certified Pediatric Nurse Practitioner. She received her Bachelor degree in Nursing from East Tennessee State University in 2017. She continued her studies and obtained her Masters in Nursing degree from the University of Tennessee at Knoxville in 2018. While completing her education she spent 2 years gaining experience as a Pediatric RN. During her training as an NP she had the opportunity to work among various clinics throughout the Tri-Cities and Knoxville area. Brooke grew up in Abingdon, VA and now lives in Bristol, TN. She enjoys spending tie with her family, friends, and her dog Annie. She has always known she wanted to have a career in the medical field, specifically taking care of infants and children. She is very excited to join our Pediatric Cardiology team and to help in the care of our patients.

Brooke Pennings

Job Titles:
  • Staff Member

Jerry Walkup Jr.

Job Titles:
  • Staff Member

Melissa Alderman

Job Titles:
  • Staff Member
Melissa Alderman is a Registered Cardiac Sonographer. She graduated from Northeast State Community College in 2012 with an A.A.S from the Cardiovascular Technology Non-Invasive program. She began her career helping new students entering the Cardiovascular program as their Lab Assistant and the Clinical Coordinator while also working for Unicoi County MemorialHospital. Later she had the opportunity to increase her skills by working at the University of Tennessee Medical Center in Knoxville and Bristol Regional Medial Center. She also holds a B.S degree with concentration of Allied Health Leadership. Melissa is a Jonesborough native. She is married and has two children. Their furry companions consist of four cats, most of which adopted them. In their spare time they enjoy hiking, camping and other outdoor activities.