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About Middlesex Monmouth Gastroenterology


Middlesex Monmouth Gastroenterology is a premier gastroenterology group with six physicians board certified in gastroenterology.

With four conveniently located offices in Freehold, Holmdel, Monroe, and Old Bridge, we strive to give our patients the most professional care possible by fulfilling our mission of empowering gastroenterologists to deliver compassionate, high quality, and comprehensive care through an unparalleled patient experience. We hope to educate and inform our patients and their families about our gastroenterology practice.

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Meet the Physicians

Our physicians are on staff at a variety of hospitals including Centrastate Medical Center in Freehold, NJ, and Bayshore Community Hospital in Holmdel, NJ. We work at a state-of-the-art ambulatory surgery center that provides superb care for our patients.

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Colonoscopy

A colonoscopy is now the gold standard used to detect or prevent individuals from getting colon cancer. Adults starting at age 45 years are strongly recommended to have a colonoscopy or some other test to screen for colon cancer.

Capsule Endoscopy

During the procedure, a patient swallows a vitamin-sized pill with a camera inside (pill camera). Transported smoothly and painlessly through the GI tract by the body’s own natural peristalsis, the video pill capsule transmits images of different parts of your intestine, such as the small intestine and the esophagus.

ERCP

An endoscopic retrograde cholangiopancreatography, more commonly known as ERCP, is an endoscopic procedure that is also combined with X-rays. ERCP is very much like a typical upper GI endoscopy; however, your gastroenterologist will inject a dye during the procedure, which highlights problems in certain digestive organs through X-ray technology.

Flexible Sigmoidoscopy

A sigmoidoscopy is an internal exam of the lower part of the large intestine (colon) using a short, thin, flexible, lighted tube with a camera at the tip. This procedure helps determine the cause of abdominal pain, rectal bleeding, changes in bowel habits, chronic diarrhea, and other intestinal problems.

Hemorrhoid Treatments

Two of the most common treatments for hemorrhoid removal are hemorrhoid banding, which cuts off blood flow to the hemorrhoid, and infrared coagulation (IRC) therapy, which uses infrared light to shrink and shrivel hemorrhoids. The treatment method depends highly upon whether the hemorrhoids are external (around the anus) or internal (in the rectum).

Upper Endoscopy

An endoscopy is a very common and safe procedure that is used to examine the esophagus, stomach, and upper part of the small intestine, known as the duodenum, to get a closer look at what may be causing symptoms.

Celiac Disease

Celiac disease is an autoimmune disease where a patient’s immune system abnormally responds to the ingestion of gluten. It is estimated that 1 in 100 people worldwide is affected by celiac disease. However, up to 2.5 million people in the United States may have celiac disease and not know it, as the symptoms range from mild to severe.

Constipation

Constipation is defined as having a bowel movement fewer than three times per week. With constipation, stools are usually hard, dry, small in size, and difficult to eliminate. Some people who are constipated find it painful to have a bowel movement and often experience straining, bloating, and the sensation of a full bowel.

GERD

Gastroesophageal reflux disease (GERD) is a more serious form of gastroesophageal reflux (GER) which is common. GER occurs when the lower esophageal sphincter (LES) opens spontaneously, for varying periods of time, or does not close properly, and stomach contents rise up into the esophagus.

Hemorrhoids

Hemorrhoids are swollen veins in the anal canal. This common problem can be painful and can be caused by too much pressure on the veins in the pelvic rectal area. Normally, tissue inside the anus fills with blood to help control bowel movements, but if you strain or sit on the toilet a long time to move stool, the increased pressure causes the veins in this tissue to swell and stretch.

Inflammatory Bowel Disease + Crohn's Disease & Ulcerative Colitis

Inflammatory bowel disease (IBD) encompasses a set of gastrointestinal diseases where parts of the digestive tract are chronically inflamed by a dysfunctional interaction immune system. Hereditary factors and an abnormal interaction between microorganisms and the immune system are felt to play a role.

Irritable Bowel Syndrome

It is estimated that 10 to 15 percent of Americans have Irritable Bowel Syndrome (IBS). IBS is a functional GI disorder that refers to a group of symptoms that affect the digestive tract, often resulting in abdominal pain, bloating, or cramping. However, some people with IBS have no symptoms at all.

What Our Patients Say About Us

Dr. Colin Brown was excellent as always and very professional. Deb (the RN), Kelly (front desk) and Barbara (front desk) were very professional throughout the entire process from beginning to end and should be commended for their patience, hard work and professionalism.
Albert F.
Albert F.
Dr. Geller is Very Knowledgeable and Professional. And his staff is very accommodating as well. Highly recommended to Others.
Debbie G.
Debbie G.
Dr. Nadler is professional, patient & a competent diagnostic physician. I have been seeing him for gastro issues over the years & I highly recommend him!
Carol A.
Carol A.
Dr. Aaron was very professional and knowledgeable. He was patient and he listened. I would recommend him.
Shannon G.
Shannon G.
Dr. Gupta is kind and considerate. He explains all procedures and answers all questions in detail. The staff is also friendly and helpful.
S.H.
S.H.
Dr. Brown is very kind, patient, knowledgeable, skillful, and very thorough. He is flexible when it is needed and called me back to arrange an urgent appointment. He solved my problem professionally. Dr. Brown cares very much for his patients.
Ning S.
Patient Testimonials
Dr. Geller cares. I had called answering service on weekend and Dr. Geller called me back immediately and spent a long time discussing my concern. He called me back an additional 3 times to make sure i was ok.
Sam S.
Sam S.
I’ve been going to Dr. Nadler for over 20 years. He is a wonderful, professional, and caring doctor. His staff is always courteous and respectful!!!
Iris G.
Iris G.
I met Dr. Aaron when I was preparing for bariatric surgery. He was very thorough and kind. When I had my endoscopy, he explained everything to my husband and I. I was very pleased.
Margaret R.
Margaret R.
Dr. Gupta is very welcoming, nice and knowledgeable. I will always recommend him to friends and family!!!
Rich O.
Rich O.

Blogs

ADH_Medication-for-ibs
IBS

Is There Medication for IBS?

Unlike conditions that cause visible inflammation or structural damage, IBS is related to changes in gut sensitivity, intestinal movement, and communication between the brain and the digestive system.

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March 12, 2026
ADH_How-IBS-Affects-Men
Gender

How IBS Affects Men

Understanding these gender-specific patterns can help men recognize male IBS symptoms, manage their condition, and know when to seek help from a healthcare provider.

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February 19, 2026

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