John William Blackett, MD, MS
Gastroenterology
Accepting New Patients
Virtual Visits/Telehealth
On the web

Overview
Areas of Expertise / Conditions Treated
- Achalasia of Esophagus
- Anorectal Manometry
- Capsule Endoscopy
- Colon Cancer
- Colon Cancer Screening
- Colonoscopy
- Cyclic Vomiting Syndrome (CVS)
- Eosinophilic Esophagitis
- Esophageal Cancer
- Esophageal Disease
- Esophageal Manometry
- Esophageal Motility Disorder
- Esophageal Stricture
- Feeding Tubes
- Gastric Outlet Obstruction
- Gastrointestinal Cancer
- Gastrointestinal Motility
- Gastroparesis
- General Gastroenterology
- Non-Celiac Gluten Sensitivity
- PEG-J Feeding Tube
- PEG Feeding Tube
- Schatzki Ring
- Stomach Cancer
- Surveillance for Colorectal Cancer
- Virtual Colonoscopy
Academic Appointments
- Assistant Professor of Medicine
Hospital Affiliations
- NewYork-Presbyterian / Columbia University Irving Medical Center
Gender
- Male
Schedule an Appointment
Virtual Visits/Telehealth
Virtual Visits allow you to connect with your provider from the comfort, convenience, and safety of your own home.
Phone Appointments
New and Existing Patients:
Connect Patient Portal
For existing patients, login to make an appointment, view documentation or contact your care provider.
Location(s)
Insurance Accepted
Medicare
- Railroad
- Traditional Medicare
*Before your appointment, please contact the doctor’s office or your insurance provider to verify that your insurance is accepted. This list of insurances can change, and the insurance plans listed may not be accepted at all office locations for this provider.
Credentials & Experience
Education & Training
- Washington University School of Medicine
- Residency: NewYork-Presbyterian/Columbia University Irving Medical Center
- Fellowship: NewYork-Presbyterian/Columbia University Irving Medical Center
Board Certifications
- Gastroenterology
