Dr. John Hahn, MD is accepting new patients on Healthline FindCare. You can check to see if Dr. Hahn is offering online scheduling or call the provider’s office for more information.
Dr. John Hahn, MD
Dr. John Hahn, MD is a Gastroenterology Specialist in Bayonne, NJ. They specialize in Gastroenterology, has 38 years of experience, and is board certified in Internal Medicine. They graduated from UNIVERSITY OF MEDICINE AND DENTISTRY OF NEW JERSEY / NEWARK and is affiliated with Bayonne Medical Center.
They frequently treat conditions like Hernia, Diverticulitis, Intestinal and Ulcerative Colitis along with other conditions at varying frequencies. They are accepting new patients and accepts Aetna, Anthem and Blue Cross Blue Shield as well as other major insurance plans. Please call ahead to schedule an appointment and to confirm all accepted insurance plans.
- Bayonne Medical Center
Experience & Treatment Frequency
View All Accepted Carriers
- Blue Cross Blue Shield
- CareFirst Blue Cross Blue Shield
- First Health
* Please verify this information when scheduling an appointment.
Ratings & Reviews
How was your appointment with Dr. Hahn?
I've been going to Hahn for 25 years. He's damn good at what he does. Not going to lie, he's very straight forward and blunt. He doesn't sugar coat, which I like in my doctors. He knows his stuff, he's been doing this for a LONG time. If he tells you not to do something after a procedure, he's telling you that for a reason, listen to him! I like Dr. Hahn, he's helped me with a rare problem for the entire time I've been going to him. He might be gruff but he knows his stuff, that's what matters.
About Dr. John Hahn, MD
- 38 years of experience
- English, Korean
Education & Certifications
- UNIVERSITY OF MEDICINE AND DENTISTRY OF NEW JERSEY / NEWARK
- Internal Medicine
Frequently Asked Questions
Dr. Hahn has an average wait time of 16 – 30 minutes at their office(s).
Dr. Hahn has indicated that they do offer telehealth services. Please call the provider’s office at for more information.
Dr. Hahn has seen patients for Hernia, Diverticulitis, Intestinal and Ulcerative Colitis, and more. You can see other conditions treated by Dr. Hahn on their profile. Please call the provider’s office to confirm all visit reasons.
Dr. Hahn speaks Korean.
14 patients have reviewed Dr. Hahn. The overall rating for this provider is 3.3. You can read verified reviews and ratings and leave your own review based on your experience with Dr. Hahn.
Whether a person prefers to schedule an appointment online or over the phone with Dr. Hahn, there are benefits to both methods. A person calling to schedule an with Dr. Hahn appointment can ask questions about the practice, provider availability, conditions treated, procedures performed, and if their insurance carrier is accepted. While online scheduling is quicker, easier, allows one to view a wide range of appointment times, and may provide the ability to sync with a personal calendar.