Dr. John Barrett Walker, MD is a highly experienced internist with over 48 years of practice in Burlington, North Carolina. He graduated from the Wake Forest School of Medicine in 1975 and has since developed a strong focus on Internal Medicine, particularly treating conditions such as Vitamin B12 Deficiency Anemia, Osteoarthritis, and Hypothyroidism among others. Dr. Walker is fluent in both Spanish and English, which enhances his ability to serve a diverse patient population....