Dr. Kenneth Zierer, MD

Dr. Kenneth Zierer, MD

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Gastroenterology | Male | 54 years old

11 reviews| Leave a review
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Personal Bio

Dr. Kenneth G. Zierer is a gastroenterologist at Gastroenterology Associates of New Jersey. He is triple board certified in internal...Read more

Dr. Zierer's Experience

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Experience Match

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Specialties

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1
Board Certifications

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82
Conditions Treated

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9
Procedures Performed

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Background Check

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Education

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Awards & Recognition

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Languages Spoken

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Memberships & Professional Affiliations

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Visiting Dr. Zierer

Dr. Zierer accepts 21 insurance carriers

Affiliated Hospitals

Hospital Quality
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Dr. Zierer's Reviews

Likelihood of recommending Dr. Zierer to family and friends
3.6
based on 11 total surveys (6 with reviews)
Dr. Zierer's Performance
  • Trustworthiness
    VERY GOOD
  • Explains condition(s) well
    VERY GOOD
  • Answers Questions
    VERY GOOD
  • Time well spent
    VERY GOOD
Office & Staff Performance
  • Scheduling
    EXCELLENT
  • Office environment
    EXCELLENT
  • Staff friendliness
    EXCELLENT
  • Average wait time
    10 to 15 minutes
Patient Reviews (6)
Lyndhurst, NJ |
I find Dr. Zierer and his staff excellent, easy to make an appointment and everything else after that, its the second time I came for an examination and went for another examination in the Clifton office the same friendly staff from the appointment to the end all excellent including a follow up call from the office the next day to find out if all was ok with me. Big thank you.
Clifton, NJ |
Hands down one of the best doctors I've ever been to. Thorough, informative, and caring.
in Passaic,NJ |
Tells you the truth about your condition and possible solutions.If you have any questions he will answer them promptly and coherently.
New York, NY |
I do not recommend him and will never be back. After finding a cancer polyps and diagnosed for gastritis. He did not recommend any diet nor prescribed any medicine. When I asked him how to cure them he just told me whatever bothers my stomach or causes heartburn just don't do it. If I really need to hear that I wouldn't pay $1000 dollars for diagnosis right??? he is not paying attention and do not listen you... Worst MD i have ever been.
in Carlstadt, NJ |
Strange I had an endoscopy scheduled and sat waiting for 40 minutes until my anxiety got the best of me and I walked out. Dr. Zierer never called to follow up with me or ask if I was even ok. I should've let that been my first warning. However, here I find myself on treatment and the more I read and review the more I feel failed by this doctor. Guess I was just another dollar sign. To those perspective patients, do your homework, ask questions, and hold him to a higher standard.
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Highly intelligent, thorough and caring physician. Takes him time to understand your symptoms and comes up with a plan that is comfortable for the patient. I had an upper endoscopy with him and he and his staff were top notch. I would highly recommend him.
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Dr. Zierer says...

Dr. Kenneth G. Zierer is a gastroenterologist at Gastroenterology Associates of New Jersey. He is triple board certified in internal medicine, pediatrics and gastroenterology by the American Board of Internal Medicine.

Dr. Zierer completed a fellowship in hepatology, a combined residency and internship program for internal medicine and pediatrics as well as his medical degree from Rutgers New Jersey Medical School in Newark, NJ. In addition, he received his bachelor's degree from George Washington University in Washington, D.C.

Dr. Zierer'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
  •  No malpractice claims found
  •  No sanctions found
  •  No board actions found

Awards & Recognition

  • Awards & Honors
    • Healthgrades Honor Roll
    What is a recognized doctor
  • Media & Publications

    Dr. Zierer has no media or publications listed.

Background Check

  • 0
    Malpractice Claims

    No malpractice history found for New Jersey.

    What is medical malpractice
  • 0
    Sanctions

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

    What is a sanction or disciplinary action
  • 0
    Board Actions

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

    What are board actions

Board Certifications

Why It Matters: Dr. Zierer's Board Certifications

Board certification should be one of your top considerations when choosing a doctor. Board certification is an official recognition given to doctors who have met specific requirements set by national medical specialty boards in the... More

  • Gastroenterology

Conditions Treated

  • Abdominal Disorders
  • Abdominal Pain
  • Anemia
  • Autoimmune Diseases
  • Autoimmune Hepatitis
  • Barrett's Esophagus
  • Benign Neoplasm of the Digestive System
  • Benign Tumor
  • Biliary Atresia
  • Blood Disorders
  • Cancer
  • Celiac Disease
  • Cholecystitis and Gallstones
  • Chronic Hepatitis B
  • Chronic Hepatitis C
  • 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 Achalasia and Cardiospasm
  • Esophageal Cancer
  • Esophageal Diseases
  • Esophageal Diverticulum
  • Esophageal Ulcer
  • Esophageal Varices
  • Esophagitis
  • Fatty Liver Disease
  • Gallstones
  • Gas-Bloat Syndrome
  • Gastric Ulcer
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Bleeding
  • Gastrointestinal Diseases
  • Gastrointestinal Malabsorption
  • Gastrojejunal Ulcer
  • Gastroparesis
  • Hemochromatosis
  • Hemorrhoids
  • Hepatitis B - Immune Response
  • Hepatitis C
  • Hepatorenal Syndrome
  • Hernia
  • Ileus
  • Indigestion
  • Inflammatory Bowel Disease
  • Intestinal Abscess
  • Intestinal Obstruction
  • Irritable Bowel Syndrome
  • Liver Damage from Alcohol
  • Malnutrition
  • Mesenteric Panniculitis
  • Nausea
  • Non-Alcoholic Fatty Liver Disease
  • Non-Neonatal Jaundice
  • Noninfectious Gastroenteritis and Colitis
  • Pancreatitis
  • Peptic Ulcer
  • Primary Biliary Cholangitis
  • Primary Sclerosing Cholangitis
  • Pyloric Stenosis
  • Reflux Esophagitis
  • Small Intestine Cancer
  • Stomach Cancer
  • Stomach Diseases
  • Stomach and Small Intestine Cancer
  • Ulcer
  • Ulcerative Colitis
  • Unexplained Weight Loss
  • Vascular Insufficiency of Intestines
  • Viral Hepatitis
  • Vomiting Disorders

Education

  • Medical School
    Umdnj--New Jersey Medical School

    Graduated in 1988

  • Residency Hospital
    Umdnj-U Hosp Newark

Languages Spoken

  • English
  • Spanish

Memberships &
Professional Affiliations

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

Specialties

  • Gastroenterology
  • Internal Medicine

Procedures Performed

  • Biliary Drainage
  • Colonoscopy
  • Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
  • ERCP (Endoscopic Retrograde Cholangiopancreatography)
  • Endoscopic Polypectomy
  • Endoscopy (Esophagus, Stomach, Small Intestine)
  • Gastroenterology Procedures
  • Hemorrhoidectomy or Excision of Anal Tags
  • Liver Biopsy