Dr. Michael M. Mainero is a gastroenterologist at Gastroenterology Associates of New Jersey (GANJ). Along with three board certifications, Dr. Mainero specializes in all aspects of diagnostic and therapeutic endoscopies, including endoscopic retrograde cholangiopancreatography (ERCP) and endoscopic ultrasound.

In addition to his position at GANJ, Dr. Mainero is a clinical instructor at St. George’s University School of Medicine and Chairman of the Medical Executive Committee at St. Joseph’s Regional Medical Center in Paterson, NJ.

Dr. Mainero completed a GI fellowship at St. Joseph’s Regional Medical Center in Paterson, NJ and Saint Michael’s Medical Center in Newark, NJ through Seton Hall University. He also completed his residency in internal medicine at St. Joseph’s Regional Medical Center in Paterson, NJ.

Dr. Mainero is a Fifth Pathway physician, receiving his medical degree from Universidad Autónoma de Guadalajara in Jalisco, Mexico and completing a year of clinical work at Rutgers New Jersey Medical School in Newark, NJ.

Dr. Mainero is currently a member of the Medical Society of New Jersey, the American Society for Gastrointestinal Endoscopy and the American College of Physicians. He is also a member of the American College of Gastroenterology and the American Gastroenterology Association.

Awarded Castle Connolly Top Doctors 2023
Awarded Bergen County's Top Doctors 2023

Dr. Natan Krohn is a gastroenterologist at Gastroenterology Associates of New Jersey (GANJ). He is double board certified by the American Board of Internal Medicine and American Board of Gastroenterology.

Prior to his position at GANJ, Dr. Krohn conducted research for Marion Bessin Liver Research Center and the Albert Einstein College of Medicine in Bronx, NY on various topics relevant to the medical community.

He completed a fellowship in gastroenterology and hepatology at the Montefiore Medical Center in Bronx, NY and a residency in internal medicine at Mount Sinai Hospital in New York, NY. Dr. Krohn also received his medical degree with special distinction for research in hepatology from the Albert Einstein College of Medicine and a Bachelor of Arts in history with summa cum laude honors from Yeshiva University in New York, NY.

In addition to his extensive research during his medical training, Dr. Krohn has three publications and has received academic awards including the Samuel Belkin Scholarship and the Ira Marienhoff Scholarship.

Awarded Castle Connelly Top Doctors 2023
Awarded Bergen County's Top Doctors 2023

David L. Feit, MD attended medical school at Columbia University College of Physicians and Surgeons. His residency training in Internal Medicine was completed at Columbia Presbyterian Medical Center in New York city. He also completed sub-specialty training in Gastroenterology at Columbia Presbyterian in New York City. Dr. Feit is board-certified in Gastroenterology and Internal Medicine. Dr. Feit has been selected as a “Top Doctor” by Castle Connolly, New Jersey Monthly magazine and 201 magazine. Dr. Feit is a member of Hackensack Digestive Disease Associates

Awarded Castle Connolly Top Doctors 2021

Dr. Natasha Chhabra is a gastroenterologist at Gastroenterology Associates of New Jersey. Board-certified by the American Board of Internal Medicine in both Internal Medicine and Gastroenterology.

Dr. Chhabra’s expertise includes:

Dr. Chhabra completed her fellowship in Gastroenterology and Hepatology at Montefiore Medical Center in Bronx, NY. She received her medical degree and completed a residency in Internal Medicine at New York University School of Medicine in New York, NY. She graduated summa cum laude from New York University with an interest in Biochemistry and business studies. Throughout her medical training, Dr. Chhabra has had several publications and presentations on various topics.

Awards and Recognitions
Castle Connolly Rising Star 2021, 2022
Castle Connolly Top Doctor Since 2023
Castle Connolly Exception Women in Medicine 2024

Dr. Andrew S. Boxer is a gastroenterologist at Gastroenterology Associates of New Jersey. He is board certified by the American Board of Internal Medicine in internal medicine and gastroenterology.

Dr. Boxer completed his fellowship in gastroenterology at NYU Langone Medical Center in New York, NY and his residency in internal medicine at Mount Sinai Hospital in New York, NY.

He received his medical degree from Robert Wood Johnson Medical School in New Brunswick, NJ, during which time he was elected to the Alpha Omega Alpha National Medical Honor Society.

In addition, he received his bachelor’s degree in biomedical engineering and biomathematics from Rutgers University in New Brunswick, NJ.

Dr. Boxer has contributed to several publications and conducted many presentations on various topics to the medical community. He has also received several awards throughout the course of his medical training, including the Ira M. Goldstein Award for Outstanding Teaching, the Housestaff Teaching Award, and The Arnold P. Gold Foundation Award for Humanism and Excellence in Teaching.

Media coverage: Becker's Healthcare

Dr. Rini Abraham is a gastroenterologist at Gastroenterology Associates of New Jersey. Dual board certified by the American Board of Internal Medicine in internal medicine and gastroenterology, Dr. Abraham has expertise in:

Dr. Abraham completed her fellowship in gastroenterology at New York University in New York, NY as well as her residency and internship at NYP/Weill Cornell Medical Center in New York, NY. In addition, she received her medical degree from University Hospital in Newark, NJ and her pharmacy degree from the Albany College of Pharmacy and Health Sciences in Albany, NY.
Throughout her medical training, Dr. Abraham has conducted several presentations on various topics.

https://www.instagram.com/insights/media/3307745383688392409/
Click here for Dr. Abraham's recent presentation on bloating.

Awards and Recognitions
Castle Connolly Top Doctor Since 2020
Castle Connolly Exceptional Women in Medicine 2022, 2023, 2024

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