Digestive disorders can be embarrassing, uncomfortable and life-changing. When you are suffering with a digestive problem, you want relief as soon as possible. That’s where East End Gastroenterology & Hepatology can help.
We are a single specialty gastroenterology and hepatology (liver disease) practice located on the East End of Long Island. Gastroenterologist Dr. Mark J. Coronel and his staff are committed to the highest level of patient care. We employ the latest technologies and newest procedures for an individualized approach to our patients’ medical needs. We offer a safe, convenient and friendly environment while striving for the highest standards in professionalism, responsiveness and attentive patient care in all aspects of digestive and liver diseases.
Be sure to come in for a consultation if you suffer from any of the following symptoms or conditions:
• Heartburn or GERD • Crohn's disease • Ulcerative colitis • IBS or IBD• Celiac disease • Constipation • Black stools • Difficulty swallowing • Abdominal pain • Nausea • Belching • Anemia • Hepatitis C • Cirrhosis
Our office is located in a beautiful medical park with laboratory and imaging facilities just a few steps away. We share medical space with other doctors specializing in colorectal surgery, general surgery, urology and primary care, making us a center for digestive diseases.
Best of all, we are dedicated to inpatient and outpatient treatment and have extremely flexible office and endoscopy hours, including an onsite endoscopy center that offers procedure hours on weekdays and Sundays. Thank you for visiting our website. We look forward to meeting you in person.
For comprehensive high-quality digestive care, call East End Gastroenterology & Hepatology at 631-591-3000. Or use our convenient Request an Appointment form. We welcome patients from Patchogue, East End, Manorville, Mastic, Riverhead and surrounding communities.
"Dr. Coronel, I just wanted to personally thank you for seeing my partner when we came in to your office in such a panic. Your quick treatment and decision for the stat CT scan and sending us to your close colleague for stent placement most definitely saved her life! Thank you again you are a kind and caring man!"
185 Old Country Road, Suite 3, Riverhead, NY 11901
496 County Road 111, Bldg. D, Suite 2, Manorville, NY 11949