Gastroenterologist in Stamford, CT

All our professionals at Gastroenterology/Hepatology Associates maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in gastroenterology.

Henry Beecher, MD

Undergraduate Education: Georgetown University
Medical Education: The Chicago Medical School
Residency: Columbia Presbyterian Medical Center
Fellowship: Montefiore Medical Center
Board Certification: Gastroenterology
Interests: Hepatic and biliary disorders, inflammatory bowel disease, general gastroenterology


Robert M. Dettmer, MD

Undergraduate Education: SUNY – Stony Brook
Medical Education: Albert Einstein College of Medicine
Residency: Columbia Presbyterian Medical Center
Fellowship: Columbia Presbyterian Medical Center
Board Certification: Gastroenterology



Gregory E. Wagner, DO

Undergraduate Education: Bucknell University
Medical Education: Touro College of Osteopathic Medicine
Residency: Coney Island Hospital
Fellowship: Coney Island Hospital
Board Certification: Internal Medicine, Gastroenterology Eligible
Interests: General gastroenterology, Hepatology



Amy Smithline, MD

Undergraduate Education: Northwestern University
Medical Education: Northwestern University
Residency: Columbia Presbyterian Medical Center
Fellowship: Columbia Presbyterian Medical Center, Indiana University
Board Certification: Gastroenterology



Michael Tawiah, APRN

Undergraduate Education: The College of New Rochelle
APRN: Southern Connecticut State University