Dr. Kenneth Zierer, MD
Gastroenterology*
35+ years of experience
Dr. Kenneth Zierer, MD is a gastroenterologist in Rutherford, NJ and has over 35 years of experience in the medical field. Dr. Zierer has extensive experience in Pancreatic Disease. He graduated from Rutgers New Jersey Medical School in 1988. He is affiliated with St. Mary's General Hospital. He is accepting new patients and telehealth appointments.
4.3 Star Rating
Based on 29 reviews 4.3 Star Rating (29 reviews)
Practice
71 Union Ave Rutherford, NJ 07070Telehealth available
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(973) 765-6593.
Dr. Zierer is a Healthgrades Choice provider in Gastroenterology
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- Above average experience
- Good hospital quality
- Good patient ratings
- No healthcare sanctions
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Dr. Zierer's Reviews
Likelihood to recommend Dr. Zierer
4.3
29 ratings, 19 with a written review
| 5 star | 72% | 72% |
| 4 star | 7% | 7% |
| 3 star | 3% | 3% |
| 2 star | 10% | 10% |
| 1 star | 7% | 7% |
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Goal line
What went well
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
What could be improved
No results
2 others found this helpful
Helpful
Cx – Aug 07, 2024
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Wait time is completely unacceptable! Staff is not very helpful or friendly. Would not recommend to anyone!
What went well
No results
What could be improved
- Office environment
- Difficult to schedule appointment
- Didn't listen or answer questions
- Didn't explain conditions well
- Staff wasn't friendly
- Appointment was rushed
- Didn't trust the provider's decisions
- Long wait times
1 other person found this helpful
Helpful
Dawn Isoldi – Apr 05, 2024
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Very fulfilling. He listens to my concerns and is mostly able to put my mind at ease. I truly recommend him.
What went well
- Office environment
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
What could be improved
No results
2 others found this helpful
Helpful
Joan Kimball – Oct 18, 2019
Dr. Zierer's Reply –
Thank you Joan for your review!
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Dr. Zierer is amazing! He is super nice and goes the extra mile to answer all your questions.
What went well
No results
What could be improved
No results
3 others found this helpful
Helpful
Apr 18, 2019
Dr. Zierer's Reply –
Thank you for you review!
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Doctor was very nice. Long wait in the waiting room tho.
What went well
No results
What could be improved
No results
Helpful
Apr 12, 2019
Dr. Zierer's Reply –
Thank you for your review!
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He was wonderful. Really put me at ease
What went well
No results
What could be improved
No results
Helpful
Apr 02, 2019
Thank you for your feedback we value all of our... Read More
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Dr. Zierer took his time with my visit and answered all questions and concerns I had as his patient.
What went well
No results
What could be improved
No results
Helpful
Mar 31, 2019
Thank you for your feedback we value all of our... Read More
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doctor Zierer and his staff are wonderful.
What went well
No results
What could be improved
No results
Helpful
Mar 21, 2019
Thank you for your review, we appreciate your... Read More
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Dr. Zierer and his staff are wonderful. They are patient and friendly. I am sending my entire family to see him for their colonoscopies.
What went well
No results
What could be improved
No results
1 other person found this helpful
Helpful
Mar 19, 2019
Thank you for your review, we appreciate your... Read More
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Good
What went well
- Office environment
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
What could be improved
No results
Helpful
NJ, NJ – Jan 21, 2019
Thank you for your review, we appreciate your... Read More
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Both Dr. Zierer and office staff are very courteous and efficient. Dr. Zierer is very pleasant, he carefully listens, and he takes his time, asking questions until he is satisfied that he has been as thorough as possible. Medical procedures were done in the office complex. Dr. Zierer is highly skilled.
What went well
- Office environment
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
What could be improved
No results
2 others found this helpful
Helpful
Clifton, NJ – Jan 08, 2019
Dr. Zierer's Reply –
Thank you for your review!
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Dr Zierer is friendly, easy to talk to and not intimidating. Thorough.
What went well
- Office environment
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
What could be improved
- Long wait times
1 other person found this helpful
Helpful
Rosanna in Rutherford, NJ – Oct 04, 2018
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Always seems to be a long wait, but the doctors are very dedicated.
What went well
- Office environment
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
What could be improved
No results
1 other person found this helpful
Helpful
Sep 13, 2018
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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.
What went well
- Office environment
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
What could be improved
No results
Helpful
Lyndhurst, NJ – Mar 07, 2017
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Hands down one of the best doctors I've ever been to. Thorough, informative, and caring.
What went well
- Office environment
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
What could be improved
No results
1 other person found this helpful
Helpful
Clifton, NJ – Sep 29, 2016
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Tells you the truth about your condition and possible solutions.If you have any questions he will answer them promptly and coherently.
What went well
- Office environment
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
What could be improved
No results
1 other person found this helpful
Helpful
Good to go in Passaic,NJ – Aug 16, 2016
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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.
What went well
- Office environment
- Appointment scheduling
- Staff friendliness
- Wait times
What could be improved
- Didn't listen or answer questions
- Didn't explain conditions well
- Appointment was rushed
- Didn't trust the provider's decisions
1 other person found this helpful
Helpful
New York, NY – Jun 15, 2016
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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.
What went well
No results
What could be improved
- Didn't listen or answer questions
- Didn't explain conditions well
- Appointment was rushed
- Didn't trust the provider's decisions
2 others found this helpful
Helpful
Nunya in Carlstadt, NJ – Jun 13, 2016
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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.
What went well
- Office environment
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
What could be improved
No results
2 others found this helpful
Helpful
Darlene W – May 18, 2016
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Leave a review
How was your experience with Dr. Zierer?Overall Patient Satisfaction
29responses
Likelihood of recommending Dr. Zierer to family and friends is 4.275862 out of 5
About Me
biography
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...read more
Gastroenterology
Hepatology
*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Umdnj-u Hospital Newark
Residency HospitalRutgers New Jersey Medical School
Medical School, 1988
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.
Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.
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Locations
Practice
Practice
Practice
Office205 Browertown Rd Woodland Park, NJ 07424
Affiliated Hospitals
- Recipient of 5
hospital awardsView all awardsPatient Safety Excellence Award™ (2023)
Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications
View all patient feedbackHow patients felt about the care they received at this hospital.
81%Patients said they were given information about recovering at home3% lower than the national average
74%Patients said their room and bathroom were always kept clean7% higher than the national average
Learn more about how Healthgrades measures Hospital Quality
Compare with other Gastroenterologists
Compare Dr. Zierer with our nearby Gastroenterologists at Clara Maass Medical Center.
Make an appointment at Clara Maass Medical Center today at
(973) 765-6593.