About Us

Welcome to Our Gastroenterology Practice. Providing an Exceptional, Safe & Convenient Digestive Healthcare Experience is our Passion.

We care about you. We realize you have options when it comes to your Gastroenterology Care in New Jersey.

Whether it’s your first visit or a follow up exam, you’ll actually enjoy coming to see us. Using the latest technology means that your appointment and procedures can be carried out quickly, easily, and completely pain-free.

When you use our service, expect things to be different – in a positive way. Perhaps, you’re anxious or embarrassed because you’ve had a bad experience. You’re not alone!

We understand and are excited to show you that it doesn’t have to be that way! Our skilled team is great at relaxing you and putting you at ease which is why we think lots of our patients ask us, “It’s done already?” when their procedure is completed.

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Our Physicians

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Our board certified, highly experienced NJ gastroenterologists, Dr. Howard N. Guss & Dr. Gagan D. Beri excel in improving patients’ lives by taking an individualized approach to care and perform over 3,500 gastrointestinal procedures annually. They work closely with one another in treatment planning and specialize in different areas of gastrointestinal medicine to offer patients a comprehensive slate of medical services. They also provide hospital follow-up and collaborate with an affiliated network of experts in cardiology, surgery, nutrition, physical therapy, biofeedback, smoking cessation and weight management—all to ensure that patients receive both continuity of care and the full continuum of care necessary to remedy their gastrointestinal problems. When urgent referrals are needed to other specialists, Dr. Guss and Dr. Beri personally arrange consultations on behalf of our patients.

Dr. Howard N. Guss

Meet Dr. Howard N. Guss

Dr. Guss is an astute clinician, old-school in his diagnostic acumen, and precise in his clinical ability. He has been… Read More

Dr. Gagan D. Beri

Meet Dr. Gagan D. Beri

Dr. Beri’s priority is caring for his patients. In his professional practices, he strives to bring healing to people who… Read More

Our Nurse Practitioner

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Kelly Byrnes, NP

Kelly is an Advanced Practice Nurse (APN) and is a credentialed Adult-Gerontology Primary Care Nurse Practitioner. Kelly has been part of the practice for nearly two years. Previous experience includes over six years as an intensive care unit nurse. Kelly has been a part of the gastroenterology practice since 2015. She has completed a Doctorate in Nursing Practice from Rutgers University.

Professional interests include colon cancer screening, hepatitis C screening and treatment, diseases of the liver, and gastroesophageal reflux disease. In her spare time, she likes to cook, garden, and walk her dog Abby!

Our Office And Patient Care

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Our newly renovated office is comfortable, homelike and handicap accessible, offers onsite parking, and is conveniently located near the Garden State Parkway and Routes 18, 35 and 66. We feature private consultation rooms, onsite phlebotomy (blood drawing), in-office Hemorrhoid treatment and Breath Testing for functional bowel disorders, and an electronic medical records system that reminds patients of appointments and sends prescriptions to pharmacies. And our friendly, caring staff has more than 50 years of combined experience in helping patients navigate the appointment, billing and insurance processes. You’ll always be greeted by a cheery live voice when you call us on the phone, as well as when we call you to answer your questions and check how you are doing after undergoing a gastrointestinal procedure.

We’ll always go the extra mile to help you feel well. Come see us for the finest gastrointestinal care in New Jersey.

Patient Education

Celiac Disease – A Missed Diagnosis

Celiac Disease – A Missed Diagnosis

I wanted to share an interesting article on celiac disease that was presented recently in the Well Blog section of the NY Times. I felt it raised a few very important points regarding celiac sprue, namely: 1.  The disease tends to run in families and first..

What is Barretts Esophagus?

What is Barretts Esophagus?

Barretts Esophagus is a change in the lining of the esophagus or food pipe thought to be caused from chronic acid refluxing into the esophagus from the stomach (GERD or acid reflux).  The change in cellular structure is also known as Intestinal Metaplasia of the..

Top 10 Reasons to Join a Celiac Support Group

Top 10 Reasons to Join a Celiac Support Group

Recently, I ran into Bernice Hettesheimer at Jersey Shore University Medical Center’s Endoscopy section.  For those of you who don’t know her, Bernice is a retired endoscopy nurse who now runs the Jersey Shore Celiac Support Group. She writes about the Top 10 Reasons to..


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Ira Gross

Dr. Guss to all his staff has been excellent. Anytime I call with a question or concern it was answered right away. I wholeheartedly recommend Dr. Guss. The only was the wait for my initial appointment but taking all other factors into account this is a great place

Dawn E

Dr Beri is patient, kind and loving. His staff is equally as knowledgeable. He saved my life as 3 well known Gastros misdiagnosed me. I am very glad he is not under the Allied Digestive Health LLC to which 42 drs in Monmouth County read each others notes and do not thoroughly individualize treatment. Thank god for Dr Beri. So grateful to my co worker for sending me to him.

Ruby Burton

Dr Beri is so sweet and caring and genuinely cares about his patients. He listens to the things you are feeling and does not dismiss any feelings. His front desk girls are always so welcoming when you come in and the medical assistants are sweet and lovely to talk to. They make it a great experience when you are not feeling well.