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Woodland Park’s Leading GI Specialists Dedicated to Patient Care
Our Woodland Park gastroenterologists and staff at Gastroenterology Diagnostics of Northern NJ are dedicated to providing quality, affordable care to the community in our quest to lower colon cancer rates and treat an array of digestive diseases, including Crohn’s Disease, irritable bowel syndrome (IBS) and gastroesophageal reflux disease (GERD). Gastroenterology Diagnostics of Northern NJ is skilled in performing a myriad of digestive procedures, including colonoscopy, esophageal dilation, flexible sigmoidoscopy, upper endoscopy and small bowel enteroscopy.
We believe in compassionate medicine, where patients feel reassured and unrushed. We hold ourselves to the highest of standards as the center is accredited by the Accreditation Association for Ambulatory Health Care (AAAHC).
We are also honored to be part of the American Society for Gastrointestinal Endoscopy (ASGE) Endoscopy Unit Recognition Program (EURP), which honors units that have demonstrated a commitment to delivering quality and safety as reflected in their unit policies, credentialing, staff training and competency assessment as well as their quality improvement activities.
Our patients value the compassionate care they receive from our doctors and say they are likely to recommend our center to family and friends.
For Your Visit
Our gastroenterologists and staff at Gastroenterology Diagnostics of Northern NJ are committed to ensuring your experience with us is relaxed and worry-free, from your first office visit through your post-procedure follow-up. To assist us, we ask you read and comply with all guidelines.
We’re pleased to announce our partnership with StopColonCancerNow.com to help boost colon cancer screenings and prevention for residents in the Woodland Park area.
Patient Forms
At Gastroenterology Diagnostics of Northern NJ, your time is as valuable to us as it is to you. Upon scheduling your surgery, a member of our staff will provide you with the required forms to fill out.
Insurance and Billing
Gastroenterology Diagnostics of Northern NJ accepts most major insurance. As a courtesy to you, we will bill your insurance carrier; however, we cannot tell you what your policy will cover.
Patient Registration
The patient registration portal is designed to help streamline your surgical process. Your medical information is secured and will not be shared with other institutions.
59 Reviews
Dec 3, 2021
Nov 16, 2021
For a test nobody wants to get they made it so easy. I picked up my prep stuff . I was taken in on time in the morning and greeted so nicely.They made me comfortable and the anesthesiologist came in and did his thing. Then I was taken into the room with Dr Mainero and I only remember one minute before I was out. Then I woke up in recovery good then I went home. They called me in the morning to make sure I was OK. I would totally Recommend Dr Mainero and his facility on Browertown Road In Woodland Park New Jersey👍 Nancy Sartor
Nov 9, 2021
Job well done. Professional, courteous and Overall the group gets a 10++
Nov 2, 2021
Very nice and friendly staff and a fabulous dr. If you need him i say go.
Oct 26, 2021
Very organized, timely and safe. Excellent patient care! I was very anxious about my procedure and was helped to feel very comfortable and at ease. Well done.
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I was referred to Dr. Volfson by my primary Physician for a routine procedure. When I visited the Woodland Park office, I was registered timely and the Doctor was ready to see me immediately. He is compassionate and professional in the way he explains the unknown to you. He answered my questions satisfactorily. My procedure was scheduled at my earliest availability and they followed up with me before, during and even called to check on how I was a day after the procedure :) The office Staff are efficient and the facility staff were great and had great bedside manners on the day of the procedure. Thank you to all GANJ staff I met. I highly recommend this practice.