Find a Top Gastroenterologist Near Me in New York, NY – Book an Appointment Instantly

Dr. Anthony Ng, M.D., is a leading gastroenterologist dedicated to providing state-of-the-art care to patients from Brooklyn, New York to Lower Manhattan, New York, and throughout the Greater New York City metro region. As the founding physician of GI Health, Dr. Ng offers a comprehensive array of diagnostic and treatment options for patients with issues affecting the gastrointestinal system, including chronic and acute stomach pain, colon cancer, hemorrhoids, and acid reflux, using the most advanced techniques for colonoscopy, upper endoscopy and wireless capsule endoscopy using the PillCam system. Dr. Ng also provides non-invasive screening for colorectal cancer with stool testing including the ground-breaking Cologuard fecal DNA test. In addition, he offers medical weight loss programs customized for the needs of the individual patient for optimal long-term results.

After receiving his medical degree, Dr. Ng completed his training in internal medicine at The Beth Israel Deaconess Hospital in Boston, one of the three major Harvard teaching hospitals, followed by a residency in gastroenterology at The Mount Sinai Hospital in New York City. In addition to caring for patients at his practice, Dr. Ng is also a clinical instructor of medicine at both New York Presbyterian Hospital - Weill Cornell Medical Center and Mount Sinai - Beth Israel Hospital, both top-ranked medical centers in New York City.

At GI Health, Dr. Ng welcomes the opportunity to provide skilled, compassionate, patient-centered care for men and women from throughout New York City.

I practice traditional Mt. Sinai trained medicine, with a great appreciation for Integrative and alternative approaches. I look for the latest high-tech approaches including genetic testing, neurocognitive screening, and testing with ‘liquid biopsies’ by a blood test that picks up very early cancers.

I am very open to questions, and I have many years of extensive relationships with excellent subspecialists in various hospitals around the city.

With Elsa, my amazingly competent ‘right hand’, I am available by text when you have a sudden medical concern, when you need lab or X-ray results quickly, a medication refill, an appointment or timing issue, a Covid or booster question, or a question about medication in the news that might pertain to your health.

Elsa Manelli is the heart and soul of the concierge practice. Primary contact person and office manager. Elsa receives and responds to texts and calls reliably, compassionately, and supports me, Stacy, and my patients in a caring and timely fashion. She has trained Allison and Cintia, my office staff, to be equally caring and responsive. Treat them all well, please!

I want to work with patients who appreciate collaboration! ‘You and me versus the issue at hand’.

And I am fortunate to work alongside a wonderful physician assistant with 15 years of experience named Stacy Beaupre who is very involved in integrative care and will be helping me evaluate neurocognitive function. She too is available and on-call.

I can only take a limited number of new concierge patients and I welcome a scheduled five-minute phone conversation where we can see if we are a good fit for one another.

Dr. Blair Lewis is a well-respected and experienced New York City gastroenterologist providing care for all sorts of gastrointestinal diseases and conditions at his private practice on Manhattan's Upper East Side. As a board-certified gastroenterologist with more than 72 scientific papers, 25 book chapters and three books to his credit, Dr. Lewis is skilled in a wide array of procedures and treatments aimed at diagnosing and treating GI issues, including endoscopy, colonoscopy, capsule endoscopy and colon cancer screening, as well as the care and management of diseases and conditions like gastroesophageal reflux disease (GERD), colonic polyps and inflammatory bowel disease (IBD). He is considered to be one of the world's leading experts in endoscopy and is widely considered to be the “father” of the capsule endoscopy technique, having served as the primary investigator of several early clinical trials.

Dr. Lewis received his M.D. From Albert Einstein College of Medicine, performing his residency in internal medicine at Montefiore Medical Center and a fellowship in internal medicine at Mount Sinai Hospital. In addition to his private practice, Dr. Lewis holds a faculty appointment at Mount Sinai Hospital and is a clinical professor of medicine at the Icahn School of Medicine at Mount Sinai. Named one of New York City's 100 best doctors, Dr. Lewis has been featured on CNN, NBC and CBS Nightly Newscasts, ABC’s 20/20, and NBC’s The Today Show.

Dr. Lewis also chaired the annual International Conference of Capsule Endoscopy, and he is past president of the New York Society for Gastrointestinal Endoscopy and the New York Academy of Gastroenterology. He teaches courses in capsule endoscopy nationally and internationally.

Committed to providing each patient with the information he or she needs to make educated, informed treatment decisions, Dr. Lewis offers one-on-one gastroenterology consultations to provide information about care, answer questions and address concerns. Each plan of treatment is carefully developed, taking multiple factors into account to ensure the best possible outcome based on every patient's unique medical needs and overall health.

Dr. Lewis welcomes new patients, and his practice accepts most major forms of medical insurance.

Jack Husney, MD, offers exceptional gastroenterology and weight-loss services at his eponymous New York City practice, located in Brooklyn, New York. Dr. Husney provides personalized care to patients dealing with medical conditions like peptic ulcers, abdominal pain, and screening colonoscopy.

Dr. Husney is a triple board-certified gastroenterologist who completed his training in both gastroenterology and hepatology at Mount Sinai Hospital in New York City. He  continued his education for non-surgical weight loss at Weill Cornell Medical Center.

Patients struggling to lose weight on their own can count on Dr. Husney to provide the latest non-surgical weight-loss strategies for long-term success.

Dr. Husney also holds the title of Honorary NYPD surgeon, where he serves as a consultant to the New York Police Department in times of need. He has been selected to NY Times Rising Super Doctors. 

Constipation, bloating, and diarrhea are only some of the symptoms Dr. Husney treats on a regular basis. He assists all patients, providing personalized diagnostic testing and treatments for long-term relief of GI problems.

Colonoscopies are one of several essential tools Dr. Husney utilizes to diagnose a wide range of problems in the bowels, such as celiac disease or polyps.

Dr. Husney is a highly respected gastroenterologist, giving patients the leading treatments for chronic GI issues such as Crohn’s disease, GERD, and irritable bowel syndrome (IBS). He takes the time to know each patient in order to provide the best care.

He has engaged in various research projects including basic science research, clinical pharmacology, and clinical research. His work has been published in several major gastroenterology journals and he has presented his research at multiple national conferences. He continues to educate  shares his expertise with residents and medical students. He’s passionate about passing his knowledge on to the next group of doctors in his specialized field.

Call Jack Husney, MD, today to schedule a consultation gastrointestinal issues or weight loss, or book an appointment on the website.

Zachary Marwil, MD, is a highly respected and sought-after gastroenterologist on Long Island. Dr. Marwil is a partner at Gastrointestinal Specialists of Long Island (GISLI) and also serves as the managing director at the Northwell Health Endoscopy Center of Long Island. He is board-certified in both gastroenterology and internal medicine.

Dr. Marwil attended the University of Michigan as an undergraduate and earned his Doctor of Medicine from St. George’s University School of Medicine.

Dr. Marwil completed his residency in internal medicine at the State University of New York (SUNY) Downstate Medical Center, where he also had the honor of serving as the chief resident in the department of medicine. He continued his training as a fellow and then as chief fellow in the division of gastroenterology and hepatology at SUNY Downstate Medical Center.

Both during his post-graduate training and as an attending, Dr. Marwil has authored several research abstracts and journal articles. His findings have been published in peer-reviewed journals and presented at national meetings. 

Having held several teaching positions, Dr. Marwil is currently on faculty as an Assistant Professor at the Zucker School of Medicine at Hofstra. He is a member of the American College of Gastroenterology, the American Society of Gastrointestinal Endoscopy, and the New York Society for Gastroenterology and Endoscopy.

Dr. Marwil takes great pride in offering state-of-the-art gastroenterology care for people of all ages and strives to treat each patient with the care and empathy they deserve. When not in the office, Dr. Marwil stays active through mountain biking, skiing, golf, and tennis. He mostly enjoys spending time with his wife and two daughters.

Jeffery Novak, MD, FACG, is a gastroenterologist and partner at Gastrointestinal Specialists of Long Island (GISLI) located in Wantagh and Malverne, New York. He is also a founding member of the Endoscopy Center of Long Island in Garden City, New York. He has been serving patients in the area since 1998. 

Dr. Novak earned his Bachelor of Science in biology from Trinity College, where he was a member of Phi Beta Kappa and received several academic honors. 

Dr. Novak attended medical school at the Albert Einstein College of Medicine, where he earned honors in gastroenterology, infectious disease, and other specialties.

After graduation, Dr. Novak completed his internship and residency in internal medicine at Mount Sinai Hospital in New York City. He then completed his fellowship in gastroenterology at Jackson Memorial Hospital Center in Miami, Florida.

Dr. Novak brings over 25 years of experience to his patients at Gastrointestinal Specialists of Long Island. He diagnoses and treats all gastrointestinal conditions, with his ultimate goal being to ensure that each patient feels comfortable and valued under his care. 

Dr. Novak is a Diplomate of the American Board of Gastroenterology and the American Board of Internal Medicine. He is a member of the American College of Gastroenterology, the American Society of Gastrointestinal Endoscopy, the New York Society for Gastroenterology and Endoscopy, and the Nassau County Medical Society.

The Heart Center of the Oranges, PA, is a medical practice with multiple locations: West Orange, East Orange, South Orange, Maplewood, Newark, Belleville, and Bloomfield, New Jersey. Led by a skilled team of physicians, nurses, and other medical professionals, the practice serves people aged 20 and older in person and virtually via telemedicine.

The Heart Center of the Oranges, PA, offers specialty services, including cardiology, endocrinology, gynecology, internal medicine, neurology, podiatry, pulmonology, women’s wellness, pediatric endocrinology, nutrition, and sleep medicine. Patients with chronic diseases or general medicine concerns can turn to the highly trained experts at The Heart Center of the Oranges, PA, for superior care.

The skilled medical team personalizes each treatment plan based on a patient’s medical needs, lifestyle, and desired outcomes.

Those with diabetes, foot or ankle issues, gynecology concerns, or heart, kidney, or lung diseases rely on The Heart Center of the Oranges, PA, for exceptional care in a welcoming setting. Undergoing routine care reduces the risk of bothersome symptoms and severe medical complications. 

The Heart Center of the Oranges, PA, team is friendly, providing top-notch patient-centered care using the latest advances in technology and research-backed treatments. They compassionately welcome new and existing patients to the practice.

Schedule an in-person or telehealth appointment at The Heart Center of the Oranges, PA, by phone or online today.

Welcome To Our Practice

Maria Lufrano, MD, is a specialist in the field of gastroenterology and hepatology. At her practice – ML Gastroenterology in Bronxville, New York – she treats disorders of the digestive system, including gastroesophageal reflux disease (GERD), irritable bowel syndrome (IBS), colitis, functional disorders of the gut, and liver disease on a daily basis. 

Dr. Lufrano grew up in Westchester County and graduated from New York University with a Bachelor of Arts in journalism as well a minor in biology and chemistry. She then pursued a Master in Science from New York Medical College in biochemistry and molecular biology. During her post-graduate training, she focused on breast cancer research. Maria continued to be interested in medicine and research and decided to pursue a degree in medicine. In 2002 she graduated from New York College of Osteopathic Medicine. She completed her residency in internal medicine and fellowship in gastroenterology and hepatology at North Shore University Hospital – Long Island Jewish Medical Center in Long Island in 2012. 

She has remained actively involved in research throughout her career and has published several scientific papers and presented at national scientific meetings. She is double board-certified in gastroenterology and internal medicine.

Dr. Lufrano is committed to the highest level of patient care. She employs the latest technology to provide an individualized approach to patient medical needs. Her primary focus is preventive and integrative medicine as well as conventional medicine. She has incorporated the effects of nutrition and diet into the treatment plans of her patients. She understands the importance of treating the body as a whole and the positive impact of treating ailments using an integrative approach. In addition to conventional therapies, she offers nutrigenomics, micronutrient testing, evaluation of the microbiome, and personalized anti-inflammatory dietary plans for patients with IBS, leaky gut, gastroesophageal reflux disease, and dyspepsia. She also has developed an anti-inflammatory weight loss program for her patients. 

At ML Gastroenterology, she also helps identify the underlying cause of common gastrointestinal symptoms like abdominal pain and bloating. Dr. Lufrano and the team also perform endoscopy and colonoscopy procedures to evaluate the gastrointestinal tract and colon cancer screenings for those that need them. 

She is currently an attending physician at New York-Presbyterian Lawrence hospital and St. John’s Riverside Hospital – Dobbs Ferry Pavilion. She holds professional membership in several national societies, including the American College of Gastroenterology and the American Medical Association. She also plays an active role in multiple societies in her community. 

To schedule an appointment with Dr. Lufrano and the team at ML Gastroenterology, call the office or use the online booking tool today. 

Michael Ashamalla, MD, is a board-certified gastroenterologist who proudly serves the patients of Syosset, Long Island, New York, at Long Island Gastro. Specializing in gastroenterology, hepatology, and nutrition, Dr. Ashamalla offers expert care for a wide range of digestive health concerns—from acid reflux and abdominal pain to liver disease and irritable bowel syndrome (IBS).

Dr. Ashamalla began his medical career through the prestigious combined BA/MD program at Siena College and Albany Medical College, graduating magna cum laude. He completed his residency in Internal Medicine at North Shore/LIJ (now Northwell Health), where he served as Chief Medical Resident. He went on to complete his fellowship in Gastroenterology at NYU Langone Health, one of the nation's top-ranked programs for GI care.

With a reputation for thorough and compassionate care, Dr. Ashamalla is dedicated to listening closely to his patients and developing personalized treatment plans. His approach combines clinical excellence with a deep commitment to patient well-being, ensuring each individual receives the attentive care they deserve.

If you're seeking a trusted gastroenterologist in Syosset, schedule an appointment with Dr. Ashamalla today to take the first step toward better digestive health.

Faisal Sheikh, DO is a Gastroenterology specialist in Syosset, New York. Dr. Sheikh is affiliated with Northwell Health and multiple hospitals in the area. He received his medical degree from New York College of Osteopathic Medicine.

After graduating, Dr. Sheikh completed his residency at North Shore University Hospital in Manhasset, New York. He then went on to become double board-certified in Internal Medicine and Gastroenterology.

Dr. Sheikh joined Long Island Gastro in 2014 and has been serving the Syosset community ever since. He is fluent in both English and Urdu.

In his free time away from the practice, Dr. Sheikh enjoys spending time with his family.