Alan J. Diamond, MD

Originally from Des Moines, Iowa, Alan Diamond, MD received his undergraduate degree from the University of Wisconsin.  He graduated from Mount Sinai School of Medicine in New York and completed Internal Medicine residencies at Montefiore Medical Center in New York and George Washington University Medical Center in Washington, DC.  He pursued his Gastroenterology fellowship at the Veterans Administration National Medical Center in Washington, DC and has been in private practice sine 1982.  He has since treated thousands of patients with a variety of gastrointestinal and liver disorders in the office, hospital and out-patient endoscopy center environment.

Dr. Diamond appreciates the challenge of diagnosing his patients' problems and of performing endoscopies.  He is also an active member of the medical community, having served on the Ethics Committee at Holy Cross Hospital for nearly 20 years and as President of the Endoscopic Surgical Centre of Maryland and Endoscopic Surgical Centre of Maryland North for many of the past 14 years.  He has been recognized by his peers as a "Top Doctor" in Washingtonian magazine.

Dr. Diamond met his wife, a pediatrician, in medical school.  They have three children, two dogs and a cat.  He has resided in Montgomery County for the past 32 years.  He enjoys tennis and golf, locally and at Wintergreen, Virginia.

Foreign Languages Spoken:

  • Spanish

Medical Education and Training

Mount Sinai School of Medicine /
New York, NY
/ Doctor of Medicine


Montefiore Medical Center / Bronx, NY


Gastroenterology /
Veterans Administration Medical Center / Washington , DC

Additional Certifications

  • Gastroenterology
  • Internal Medicine

Member of

American College of Gastroenterology, American Society for Gastrointestinal Endoscopy, Crohn’s and Colitis Foundation of America, Metro Maryland Ostomy Association, Montgomery County Medical Society
Endoscopy Center Affiliations
  • Endoscopic Surgical Centre of Maryland
  • Endoscopic Surgical Centre of Maryland-North
Hospital Affiliations
  • Holy Cross Hospital
  • MedStar Montgomery Medical Center
  • Shady Grove Adventist Hospital

Locations & Physicians

Find a Location