Browse Health
Gastroenterologist (digestive)
37 years of experience
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (3)

The overall average patient rating of Dr. Aaron Harrison is Good. Dr. Harrison has been reviewed by 8 patients who have provided 3 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.7
Promptness 3.7
Courteous Staff 3.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. Aaron Harrison, MD is board certified in Gastroenterology.

  • He has special expertise in 6 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Constipation
  • Crohn's Disease
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. Harrison graduated from Yeshiva University, Bronx. He has 2 awards.

Castle Connolly Top Doctors: New York Metro Area™ (1998 - 2008, 2010 - 2015)
Castle Connolly's Top Doctors™ (2013)


Dr. Harrison has 10 hospital affiliations:

  • North Shore/Long Island Jewish Hospital System - Franklin Hospital Med Ctr 
  • Good Samaritan Hospital 


  • Spanish
  • English

Similar doctors nearby

Dr. Mary Thomas

Internal Medicine
15 years experience
Bay Shore, NY

Dr. Jeffrey Ashkin

42 years experience
Bay Shore, NY

Dr. Paul Broomfield

33 years experience
Bay Shore, NY

Dr. Frank Karpowicz

Internal Medicine
30 years experience
Bay Shore, NY

Dr. Stuart Akerman

Internal Medicine
4 years experience
Bay Shore, NY

Dr. Priya Grewal

Internal Medicine
20 years experience
Bay Shore, NY
Search All Similar Doctors
Additional Information
Dr. Aaron Richard Harrison MD is a male Internist, has 37 years of experience and practices in Gastroenterology.
Where does Dr. Aaron R. Harrison practice?
Dr. Aaron Harrison has 4 office locations.
Dr. Aaron Harrison practices Gastroenterology near Bay Shore, NY.
Additional practice locations include: Schenectady, NY and Islandia, NY.
See Bay Shore Gastroenterologists.