- American Board of Internal Medicine – Internal Medicine
- American Board of Internal Medicine – Gastroenterology
- American Gastroenterological Association
- American College of Gastroenterology
- American Society for Gastrointestinal Endoscopy
- Dr. Pillai has a special interest in advanced endoscopic procedures which include Endoscopic Ultrasound (EUS), Endoscopic Retrograde Cholangiopancreatography (ERCP), Radio Frequency Ablation of Barrett’s Mucosa, Mucosal Resection and Luminal Stenting.