Dr. Bailen is an Assistant Professor of Medicine at Tufts University School of Medicine.

A graduate of Tufts University School of Medicine, Dr. Bailen completed a residency in internal medicine at Beth Israel Deaconess Medical Center, and a fellowship in gastroenterology at Tufts-New England Medical Center.

He is board certified in internal medicine and gastroenterology by the American Board of Internal Medicine.

Honors and Awards:
Boston Magazine’s Top Doctors 2025

His clinical interests include:

• General gastroenterology
• Diagnostic and therapeutic upper endoscopy (EGD)
• Diagnostic and therapeutic colonoscopy
• Flexible Sigmoidoscopy
• ERCP (endoscopic retrograde cholangiopancreaography)
• Endoscopic ultrasound
• Inflammatory Bowel Disease