We will continue to keep our patients, staff and community safe during this pandemic.

To schedule either a live or televisit appointment, please call 908-688-6565.

Samiappan “Sam” Muthusamy, MD, FACP, FACG, FAGA – Union - West & East - Millburn - West Orange

Licensure: New Jersey

Board-Certified: American Board of Internal Medicine, American Board of Gastroenterology

Fellowship Training: Gastroenterology, St. Joseph Hospital Medical Center, Paterson, NJ

Residency Training: Internal Medicine, Long Island Hospital, Brooklyn, NY

Fellow: FACP, American College of Physicians; FACG, American College of Gastroenterology; FAGA, American Gastroenterological Association

University Appointments: Clinical Assistant Professor, Seton Hall University School of Graduate Medical Education, South Orange, NJ; Clinical Assistant Professor, New York College of Osteopathic Medicine, NY

Member: American Gastroenterology Association, American College of Gastroenterology, American College of Physicians, American Society of Gastrointestinal Endoscopy

Affiliated Hospitals: Overlook Hospital, Summit; Trinitas Hospital, Elizabeth; Newark Beth Israel Medical Center, Newark

As chief of gastroenterology at Trinitas Hospital from 1980 to 1995, Dr. Muthusamy helped train numerous interns and residents. Trinitas Hospital is affiliated with Seton Hall University’s Graduate School of Medicine. Dr. Muthusamy was selected for inclusion in “Who’s Who in Health and Medical Services.”

As a pioneer in gastroenterological surgical centers, Dr. Muthusamy developed and opened the EndoSurgiCenter in 1995 in Union, New Jersey for endoscopic and other gastrointestinal procedures. Fully licensed by the State of New Jersey as an ambulatory care facility, the center provides a fully equipped operating room, three recovery beds and a step-down unit for patients requiring additional monitoring. The center is equipped with state-of-the-art technology and a professional support staff. The EndoSurgiCenter has been certified by ASGE and TJC. Center for Digestive Diseases is Medicare- and AMA-certified.

An active practitioner, Dr. Muthusamy emphasizes patient education and awareness, particularly for those patients expected to undergo procedures. He has performed over 20,000 EGDs, colonoscopies, polypectomies, sclerotherapy and PEG procedures. He also developed a GI clinic for underprivileged people at Trinitas Hospital and cared for patients there from 1980 to 1995. Dr. Muthusamy performs all gastrointestinal procedures as well as liver biopsies and abdominal paracentesis. He continues to teach at Seton Hall University.

Office Locations

Main Office

695 Chestnut Street
Union, NJ 07083
Call: 908-688-6565
Fax: 908-688-3161

Click for directions

Onsite Ambulatory Surgery Location


1201 Morris Avenue, Union, NJ 07083
Click for directions |

Affiliated Hospitals

Medical Center

99 Beauvoir Avenue
Summit, NJ 07901

Newark Beth Israel
Medical Center

201 Lyons Avenue
Newark, NJ 07112

Trinitas Regional
Medical Center

225 Williamson Street
Elizabeth, NJ 07207