Our Physicians

Neal J. Winzelberg, MD


Dr. Neal J. Winzelberg completed his medical training in SUNY Downstate Brooklyn, NY and Albert Einstein College of Medicine then continued his training in gastroenterology at the Westchester County Medical Center. Board certified in Internal Medicine and Gastroenterology, his expertise includes cancer diagnosis, inflammatory bowel disease, celiac disease and specialized procedures such as ERCP and Small Bowel Capsule Endoscopy. He is at the forefront in the treatment of difficult diseases such as Crohn’s disease and ulcerative colitis.

Practicing in Brick, New Jersey for over 20 years, he is well respected throughout the community as a compassionate and thorough gastroenterologist and is the current Chief of Gastroenterology at Ocean Medical Center.
Dr. Neal Winzelberg is dedicated to the care of people with special needs and in 2010, was the recipient of the Healthcare Professional of the Year Award from the ARC, acknowledging his years of compassionate care to disadvantaged people.
He is a long term resident of Toms River and has three children.

Dr. Assif Rozovsky


Dr. Assif Rozovsky completed his medical and gastroenterology training at Hahnemann University in Philadelphia and is board certified in Internal Medicine and Gastroenterology. His expertise includes cancer diagnosis, inflammatory bowel disease, and disorders of the upper and lower gastrointestinal tract, including oncology bowel disease and celiac disease.

Practicing in Brick for over 15 years, he has established himself as a well-respected gastroenterologist. He maintains close ties with his colleagues in Philadelphia and often participates in the medical conferences there discussing the different fields of gastroenterology and hepatology. Often described as the quintessential physician, he has a broad range of interests which include triathlons, nutrition, and the arts. He is happily married with three children in Toms River.

Dr. Pacifico A. Magahis


Dr. Pacifico A. Magahis completed his gastroenterology fellowship at Sloan-Kettering Cancer Center and his internal medicine residency at New York University Medical Center Bellevue Hospital, New York and a Bachelor of Science degree in Microbiology from Cornell University and he received his Doctor of Medicine from Mount Sinai School of Medicine, New York. He is board certified in Internal Medicine and Gastroenterology.

His expertise includes cancer diagnosis, inflammatory bowel disease, celiac disease and specialized procedures such as ERCP, Endoscopic Ultrasound and Small Bowel Capsule Endoscopy. He is an active member of the community and in his church, and is happily married with three children in Brick.

Dr. Kenny Chiu


Dr. Kenny Chiu was born in Hong Kong. He moved to the United States in 1980 with his family at the age of seven and was raised in Queens, NY.
In 1995, Dr Chiu graduated Magna Cum Laude from Yale University, with a Bachelor of Science Degree in Molecular Biochemistry and Biophysics. He received his Doctor of Medicine Degree from the Mount Sinai School of Medicine, New York City, 1999, where he was a member of the Alpha Omega Alpha Honor Society. Subsequently, he did his internship and residency in internal medicine at New York Presbyterian-Cornell Medical Center, from 1999-2002. In June 2005, he completed a three-year fellowship in Gastroenterology and Liver Disease at Memorial Sloan-Kettering Cancer Center. He is board certified in Internal Medicine and Gastroenterology.
His expertise includes cancer diagnosis, inflammatory bowel disease, celiac disease and specialized procedures such as ERCP, Endoscopic Ultrasound and Small Bowel Capsule Endoscopy. He is happily married, living in Toms River with his wife and three children.

Dr. Brian P. Wolfman

Dr. Brian P. Wolfman completed his medical and gastroenterology training at Long Island College Hospital in Brooklyn, New York. His expertise includes disorders of the upper and lower gastrointestinal tract, including oncology, inflammatory bowel disease and celiac disease. He has extensive training in hepatobiliary diseases and advanced training in diagnostic and therapeutic endoscopy, ERCP and small bowel capsule endoscopy.

Prior to completing his medical training, Dr. Wolfman received his B.S. from Ohio University and a Masters of Science degree in Biomedical Sciences from Barry University in Miami, FL. He received his Doctorate of Medicine from St. George’s University School of Medicine in Grenada. He is board certified in Internal Medicine and Gastroenterology. He is happily married with his wife and has three children

Dr. Vishal Jain

Dr. Vishal K. Jain received his Medical Degree from The Osmania Medical College in Hyderabad, India. He spent the next three years training at The Royal College of Physicians in London. He was certified as a member of The Royal College of Physicians. He came to the United States to pursue further medical training and did a Residency in Internal Medicine at Lankenau Hospital/ Jefferson Medical College in Philadelphia. He was then chosen to be the Chief Resident at Thomas Jefferson University Hospital.

Dr. Jain then completed a three year Fellowship in Gastroenterology and Liver Disease at Penn State University/Hershey Medical Center in Hershey, PA.

His expertise includes disorders of the upper and lower gastrointestinal tract, including oncology and inflammatory bowel disease. He has extensive training in liver disorders and advanced training in diagnostic and therapeutic endoscopy, Motility, ERCP and Enteroscopy.

His research was awarded the Presidential Poster Award of Distinction at the American College of Gastroenterology Annual meeting and was one of the few fellows selected to win the Crohns and Colitis Foundation Inflammatory Bowel Disease Fellow scholarship at Mount Sinai Hospital, NY. He is board certified in both Internal Medicine and Gastroenterology.

Dr. Jain enjoys running and spending time with his 2 daughter’s and wife. He runs half marathons often and has done 2 full marathons so far.

Dr. Alexandra Greenberg

Alexandra Greenberg, DO received her undergraduate degree from St Johns University, Jamaica Queens, in 2005. She then earned her degree in Medicine from Lake Erie College of Osteopathic Medicine in 2010.

She completed her Internal Medicine residency training at Seton Hall University, where she was a chief resident. This was immediately followed by a Fellowship in Gastroenterology in Las Vegas, NV. responsible for teaching and lecturing to junior residents.

Dr. Greenberg is Board Certified in Internal Medicine. She is a member of the American Osteopathic Association, American College of Osteopathic Intemists, as well as American College of Gastroenterology.

Dr. Greenberg is proficient in and comfortably performs all endoscopic procedures of the esophagus including esophagogastroduodenoscopy, colonoscopy, polypectomy, bleeding therapy, dilation, removal of foreign bodies and endoscopic retrograde cholangiopancreatography (ERCP.) She also has experience with video capsule endoscopy, high- resolution esophageal manometry and pH studies.

Dr. Greenberg enjoys traveling as well as spending time with her husband and two children.

Dr. Steven Koerner

Dr. Steven Koerner is a Fellow of the American College of Osteopathic Internists and Board Certified in Gastroenterology and Internal Medicine. He has been practicing in the Manahawkin, NJ area since 1994. He completed his undergraduate degree in Nutritional Biochemistry at Cornell University. He received his medical degree from the University of Health Sciences/College of Osteopathic Medicine in Missouri. He completed his Internship, Residency, and Fellowship at the University of Medicine and Dentistry of New Jersey. His areas of interest include: capsule endoscopy, colonoscopy, upper endoscopy, ERCP, inflammatory bowel disease, liver disease, swallowing disorders, hemorrhoidal banding, and integrative gastroenterology. He is the current Chief of Gastroenterology and past president of the medical staff at Southern Ocean Medical Center.

Dr. Kamlesh Shah

Kamlesh “Kam” Shah, MD, FACG, is board-certified in gastroenterology with nearly 13 years of gastroenterology experience as an attending physician.

Dr. Shah obtained a bachelor of arts degree with honors double majoring in the biological sciences and economics from Rutgers College, Rutgers University in New Brunswick, NJ in 1995. He received his medical education at the University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School in Piscataway, NJ and earned his medical degree in 1999. Dr. Shah completed an internal medicine internship and residency at Thomas Jefferson University Hospital in Philadelphia, PA in 2002, followed by a three year gastroenterology fellowship at Graduate Hospital, an affiliate of Drexel University College of Medicine in Philadelphia, PA in 2005. He then pursued and completed an advanced endoscopy followship and served as an instructor of medicine at Durham VA Medical Center and Duke University Medical Center in Durham, NC in 2006 conducting research on interventional endoscopic procedures, attaining expertise in interventional procedures, and teaching gastroenterology fellows endoscopic procedure skills. Dr. Shah is affiliated with and has privileges at Southern Ocean Medical Center in Manahawkin, NJ. Kam can perform procedures and offer consultations at that hospital, in the main office in Manahawkin, and also has privileges to perform endoscopic cases at Toms River Surgery Center in Toms River, NJ. He is a member of the Medical Executive Committee at Toms River Surgery Center. As a dedicated professional with the intent to stay attuned to the latest in gastroenterology, Dr. Shah is an active member and a Fellow of the American College of Gastroenterology (ACG), a member of the American Society for Gastrointestinal Endoscopy (ASGE), and a member of the American Gastroenterological Association (AGA).

Dr. Shah provides care for a variety of digestive tract disorders. These include but are not limited to, difficulty swallowing, acid reflux, gallbladder disease, liver disease, abdominal pain, diarrhea, constipation, inflammatory bowel disease, irritable bowel syndrome, treatment of hemorrhoids (including hemorrhoid banding) and fecal incontinence.

In his spare time, Dr. Shah enjoys spending time with his family, traveling, exercising, photography and has plans on obtaining a pilot’s license.

Dr. Melissa Reynon

Dr. Reynon is Board Certified in Gastroenterology and Internal Medicine. She has been practicing in the Manahawkin, NJ area since 2014. She completed her undergraduate degree in Molecular Biology/Biochemistry at Rutgers University and was a Henry Rutgers Honors Scholar. She received her medical degree from the University of Medicine and Dentistry of New Jersey – Robert Wood Johnson Medical School. She completed her Residency and Fellowship training at the UMDNJ – Robert Wood Johnson Medical School. Her areas of interest include: capsule endoscopy, colonoscopy, upper endoscopy, inflammatory bowel disease, hemorrhoidal banding, and women’s gastrointestinal health.

Dr. Neelam Gidwaney

Dr. Neelam Gidwaney is a young and energetic physician who is Board Certified in both Gastroenterology and Internal Medicine. She completed her undergraduate degree at Binghamton University where she focused on Biology, Psychology, and Africana Studies. Dr. Gidwaney obtained her medical degree from Upstate Medical University in Syracuse, NY. She went on to complete her Internship, Residency, and Fellowship at Rutgers-Robert Wood Johnson Medical School in New Brunswick, NJ.

Dr. Gidwaney’s areas of interest include upper endoscopy, colonoscopy, gastrointestinal reflux disease, inflammatory bowel disease, and liver diseases. She has authored book chapters and her research has been published in World Journal of Gastroenterology, Gastrointestinal Endoscopy, Journal of Clinical Gastroenterology, and Practical Gastroenterology.

Dr. Gidwaney is fluent in English, Spanish, Hindi, and Sindhi. When Dr. Gidwaney is not working, she enjoys participating in medical missions, traveling, writing, learning new languages, and painting.