Dr. John Hahn, MD

Gastroenterology  |  
Male  |  
Age 57
(12)
Insurances AcceptedSave
Dr. John Hahn, MD
Dr. John Hahn, MD is a gastroenterology doctor who practices in Bayonne, NJ. He is 57 years old. Dr. Hahn is affiliated with Bayonne Medical Center.

Bayone Office

534 Avenue E Ste 1C

Bayonne, NJ 07002

Contact Information

(201) 823-0450

Dr. John Hahn, MD

Dr. John Hahn, MD

Accepted insurance

  • Aetna
  • Amerigroup (Wellpoint)
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Louisiana
  • Capital District Physician's Health Plan (CDPHP)
  • Cigna
  • Commercial Insurance Company
  • EmblemHealth
  • Empire Blue Cross Blue Shield
  • First Health (Coventry Health Care)
  • HealthFirst
  • Highmark Blue Cross Blue Shield
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana
  • 7 More

*Please verify this information when scheduling an appointment.

Learn about Dr. Hahn

Dr. Hahn's Experience

0%ExperienceMatch
Dr. Hahn's experience matches your search based on the following criteria:
  • Based on total number of patients treated over the last 12 months
  • Specializes in Gastroenterology
  • Board certified in Gastroenterology and Internal Medicine
  • No malpractice claims found
  • No sanctions found
  • No board actions found
1

Specialties

  • Gastroenterology
2

Board Certifications

  • Gastroenterology
    Accredited by: American Board of Internal Medicine*
  • Internal Medicine
    Accredited by: American Board of Internal Medicine*
71

Conditions Treated

  • Abdominal Disorders
  • Abdominal Pain
  • Anal or Rectal Pain
  • Anemia
  • Autoimmune Diseases
  • Barrett's Esophagus
  • Benign Neoplasm of the Digestive System
  • Benign Tumor
  • Biliary Atresia
  • Blood Disorders
  • Cancer
  • Celiac Disease
  • Cholecystitis and Gallstones
  • Cirrhosis
  • Colorectal Cancer
  • Constipation
  • Crohn's Disease
  • Dehydration
  • Diaphragmatic and-or Hiatal Hernia
  • Diarrhea
  • Diverticulitis, Intestinal
  • Diverticulosis, Intestinal
  • Duodenal Ulcer
  • Duodenitis
  • Dysentery
  • Dysphagia
  • Enteritis
  • Esophageal Cancer
  • Esophageal Diseases
  • Esophageal Diverticulum
  • Esophageal Ulcer
  • Esophageal Varices
  • Esophagitis
  • Gallstones
  • Gas-Bloat Syndrome
  • Gastric Ulcer
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Bleeding
  • Gastrointestinal Diseases
  • Gastrointestinal Malabsorption
  • Gastrojejunal Ulcer
  • Gastroparesis
  • Heartburn
  • Hemorrhoids
  • Hepatitis B - Immune Response
  • Hepatitis C
  • Hernia
  • Ileus
  • Indigestion
  • Inflammatory Bowel Disease
  • Intestinal Obstruction
  • Irritable Bowel Syndrome
  • Liver Damage from Alcohol
  • Malnutrition
  • Nausea
  • Neoplasm of Gastrointestinal Tract
  • Non-Alcoholic Fatty Liver Disease
  • Non-Neonatal Jaundice
  • Noninfectious Gastroenteritis and Colitis
  • Pancreatitis
  • Peptic Ulcer
  • Pyloric Stenosis
  • Reflux Esophagitis
  • Stomach Diseases
  • Stomach and Small Intestine Cancer
  • Ulcer
  • Ulcerative Colitis
  • Unexplained Weight Loss
  • Viral Hepatitis
  • Vomiting Disorders

More

Read More
6

Procedures

  • Bile Duct Procedure
  • Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
  • ERCP (Endoscopic Retrograde Cholangiopancreatography)
  • Endoscopy (Esophagus, Stomach, Small Intestine)
  • Gastroenterology Procedures
  • Liver Biopsy

Background Check

0 Malpractice Claims

No malpractice history found for New Jersey.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.

Education

  • Umdnj--New Jersey Medical School
    Medical School | Graduated
  • UMDNJ University Hospital
    Residency Hospital | Completed

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Hahn has no media or publications listed.

Languages Spoken

  • English
  • Korean

Memberships & Professional Affiliations

Dr. Hahn does not have any memberships or affiliations listed. If you are Dr. Hahn and would like to add memberships or affiliations, please update your profile.

Dr. Hahn's Reviews

Likelihood of recommending Dr. Hahn to family and friends
3.3
based on 12 total reviews (2 with comments)
Dr. Hahn's Performance
  • Trustworthiness
    VERY GOOD
  • Explains condition(s) well
    GOOD
  • Answers Questions
    GOOD
  • Time well spent
    GOOD
Office & Staff Performance
  • Scheduling
    VERY GOOD
  • Office environment
    VERY GOOD
  • Staff friendliness
    EXCELLENT
  • Average wait time
    16 to 30 minutes
Patient Comments (2)
in Bayonne, NJ |
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.
Elmwood Park, NJ |
This guy has a real attitude problem. I saw him a few times for about 6 months and his attitude kept changing (for the worse). He always makes you feel like it's your fault you're sick and it's your fault you're not getting better. To top it off, he rushes you when you might have more questions and need answers. I suffer from a minor hiatal hernia and anxiety. In my last visit he prescribed an anxiety medicine that I had a bad reaction to. My wife called to see if he could change it and the firs
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Now Accepting New Patients
Dr. Hahn accepts 21 insurance carriers
  • Aetna
    Aetna HMO
    Choice Plus POS II
  • Amerigroup (Wellpoint)
  • Blue Cross Blue Shield
    Blue Card PPO
  • Blue Cross Blue Shield of Louisiana
    BlueConnect HMO
  • Capital District Physician's Health Plan (CDPHP)
    Capital District Physician's Health Plan (CDPHP) HMO
  • Cigna
    Cigna HMO
    Cigna PPO
    Open Access Plus
  • Commercial Insurance Company
  • EmblemHealth
    Emblem Health
    Health Insurance Plan of Greater New York (HIP) PPO
  • Empire Blue Cross Blue Shield
    Empire Blue Cross Blue Shield HMO
  • First Health (Coventry Health Care)
    First Health (Coventry Health Care) PPO
  • HealthFirst
  • Highmark Blue Cross Blue Shield
    Community Blue PPO
  • Horizon Blue Cross Blue Shield of New Jersey
    Direct Access
    Horizon Blue Cross Blue Shield HMO
    Horizon Blue Cross Blue Shield POS
    Horizon Blue Cross Blue Shield PPO
  • Humana
    Choice Care PPO
  • MagnaCare
  • Mail Handlers Benefit Plan (MHBP)
  • Medicaid
  • MultiPlan
    MultiPlan PPO
    PHCS Network PPO
  • Oxford Health Plans
    Freedom Plan
  • QualCare
    QualCare HMO
    QualCare PPO
  • UnitedHealthCare
    Oxford Liberty
    United Healthcare

*Please verify this information when scheduling an appointment.

Hospitals where Dr. Hahn has admitting privileges

Bayonne Medical Center
29th Street at Avenue E
Bayonne, NJ 07002
View Hospital Profile

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