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With a decade of experience in gastroenterology, Carly G. Barth, MD, brings superior knowledge and exemplary skills to her role as a team member at Long Island Gastroenterology Specialists.

Dr. Barth sees patients in the North Wantagh, and South Wantagh, New York, offices, where she provides expert care for all types of gastrointestinal disorders and diseases.

Dr. Carly Barth was raised in Baltimore, Maryland and graduated with a Bachelor of Science in Biology from the Honors Program at the University of Maryland, College Park, Maryland. 

She then went on to receive her Doctor of Medicine from George Washington University School of Medicine and Health Sciences (GW School of Medicine and Health Sciences) in Washington, DC . 

Dr. Barth moved to New York City to complete her Internal Medicine training at Albert Einstein-Montefiore Medical Center in the Bronx, New York, and her Gastroenterology training within The Mount Sinai Health System in New York City. 

She spent most of her general Gastroenterology training at St. Luke’s, Mount Sinai West (formerly Roosevelt), and Beth Israel Hospitals.

A significant amount of her fellowship was spent at The Mount Sinai Hospital training in liver diseases, transplant hepatology, and inflammatory bowel diseases (IBD).

Dr. Barth is a member of the American College of Gastroenterology (ACG). She is affiliated with Mount Sinai Hospital, NYU Winthrop Hospital, Mercy Medical Center, and South Nassau Communities Hospital. In her free time, she enjoys traveling and spending time with her husband and son.

Anthony J. Razzano M.D received his Bachelor of Arts in History, with a concentration in Pre-Medical Studies, from Binghamton University. He earned his Doctor of Medicine from the American University of the Caribbean, where he was inducted into the Alpha Omega Phi honor society. Dr. Razzano completed his internal medicine training at NYU Langone-Long Island, where he was selected to serve as Chief Resident. Dr. Razzano stayed at NYU Langone-Long Island for fellowship training in Gastroenterology.

Dr. Razzano is based in Wantagh, NY with easy access to Nassau County and southwestern Suffolk County patients. He treats the full range of gastrointestinal issues including acid reflux, hemorrhoids, constipation, abdominal pain, as well as other diseases of the digestive tract.

Jarred E. Marshak, MD, is a highly experienced and dedicated gastroenterologist who specializes in digestive diseases. At Long Island Gastroenterology Specialists, Dr. Marshak sees patients in three offices in North Wantagh, and South Wantagh, New York.

Dr. Marshak earned his undergraduate degree at Binghamton University in Binghamton, New York. He earned his medical degree at the American University of the Caribbean in Cupecoy, Sint Maarten, where he was a member of the Alpha Omega Alpha Honor Medical Society. 

Dr. Marshak completed his internal medicine training at NYU Langone Hospital – Long Island in Mineola, New York, where he was elected chief resident. He stayed there to complete a gastroenterology, hepatology, and nutrition fellowship. 

During his fellowship training, Dr. Marshak pursued additional specialized training in liver disease and transplant hepatology. 

Dr. Marshak is a member of the American College of Gastroenterology (ACG) and American Society for Gastrointestinal Endoscopy (ASGE) and a diplomate of the American Board of Internal Medicine (ABIM). 

He’s published in multiple peer-reviewed medical journals and often gives presentations at national gastroenterology conferences. 

Dr. Marshak sees patients in the office as well as the hospital, with his affiliations including Mount Sinai Hospital in New York City; NYU Langone Hospital – Long Island; Catholic Health Mercy Hospital in Rockville Centre, New York; and Mount Sinai South Nassau in Oceanside, New York. 

Dr. Marshak is a Long Island resident who is married with one child.

Erena Treskova, MD, is a board-certified pediatric gastroenterologist who provides compassionate and comprehensive care at her private practice, Pediatric Gastroenterology, Hepatology and Nutrition of Dr. Erena Treskova. With offices in Wayne, New Jersey, and Middletown, New York, Dr. Treskova takes an integrated approach to care, combining traditional medical treatments with alternative therapies to better meet the needs of her young patients.

After finishing medical school at Saint-Petersburg State Pediatric Medical Academy in Saint Petersburg, Russia, Dr. Treskova relocated to the United States for her pediatric internship and residency program at Mount Sinai West (previously called Mount Sinai Roosevelt) in New York City. She continued her training and completed her fellowship at Columbia Presbyterian Babies Hospital, also in New York City.

During her six years of in-depth training, Dr. Treskova specialized in illnesses of infants, children and teens with subspecialty in pediatric gastroenterological diseases. She acquired specialty training in pediatric endoscopy procedures and proficiency in the treatment of gastroenterological conditions. 

Dedicated to providing well-rounded care, Dr. Treskova has special interests and qualifications in allopathic medicine, nutrition, homeopathy, herbal medicine, and manual therapy. She’s also board certified in pediatrics, pediatric gastroenterology, hepatology, nutrition, and clinical homeopathy. 

Dr Erena Treskova is Board certified Pediatric Gastroenterologist and Board Certified Nutrition Specialist. Dr. Treskova maintains professional membership in a number of organizations, including the North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition, American Society for Nutrition, American Association of Drugless Practitioners, Center for Education and Development of Homeopathy. 

In order to give her patients the most advanced treatments and care available, Dr. Treskova continuously broadens her knowledge of new techniques and procedures to help her babies, children, and adolescents better manage their gastroenterological conditions.

A mother of two, Dr. Treskova empathizes with her patients and their families and works together with them to develop plans that include effective natural treatments with fewer side effects.

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.

Christopher Tomaino, MD, a board-certified gastroenterologist at East Coast Gastroenterology and Endoscopy, offers comprehensive care for a variety of gastrointestinal symptoms and disorders. Located in Patchogue, New York, the practice has the latest advancements in diagnostic testing to quickly find the root cause of symptoms like abdominal pain, bloating, persistent diarrhea, and chronic constipation. 

Earning his medical degree from the American University of the Caribbean School of Medicine in  St. Maarten, Dr. Tomaino went on to complete his residency and fellowship in both internal medicine and gastroenterology at the Icahn School of Medicine at Mount Sinai, Elmhurst New York. He is board-certified in both internal medicine and gastroenterology by the American Board of Internal Medicine. 

Dr. Tomaino specializes in creating customized treatment plans to address individual patient needs and uses the latest technologies to perform colonoscopy and upper endoscopy. In addition to diagnosing the cause of unexplained symptoms, Dr. Tomaino can address acute and chronic gastrointestinal disorders like acid reflux, Crohn’s disease, ulcerative colitis, and diverticulitis. 

East Coast Gastroenterology and Endoscopy also offers comprehensive services to treat painful hemorrhoids using minimally invasive techniques. Dr. Tomaino can also diagnose all stages of liver disease. He customizes a treatment plan to manage the condition in the long-term and reduce risk factors for complications like liver failure.

To learn more about the available diagnostic technologies and treatment options available for gastrointestinal conditions, call East Coast Gastroenterology and Endoscopy to schedule an appointment or book one online today.

Zafar Zamir, MD, FACG, AGAF is a Board-Certified Gastroenterologist who has been caring for the Hamilton community for decades. He earned his Medical Degree from Dow Medical College in Pakistan, and completed his Residency Training at Cook County Hospital in Chicago and Fellowship in Gastroenterology from the Medical College of Wisconsin.

Dr. Zamir has a particular interest in IBS and General Gastroenterology, including hemorrhoids and other ano-rectal disorders. Dr. Zamir has held a variety of leadership roles in the local community, including as a Clinical Assistant Professor at Rutgers RWJ Medical School and as President of the Medical Staff at RWJ University Hospital Hamilton.

Please note that Maniya Health Medical Group does not employ or in any way supervise Dr. Zafar Zamir, MD. He is employed by Hamilton Gastroenterology. Patients should contact Hamilton GI's offices directly for all questions concerning their GI treatment.

Zafar Zamir, MD, FACG, AGAF is a Board-Certified Gastroenterologist who has been caring for the Hamilton community for decades. He earned his Medical Degree from Dow Medical College in Pakistan, and completed his Residency Training at Cook County Hospital in Chicago and Fellowship in Gastroenterology from the Medical College of Wisconsin.

Dr. Zamir has a particular interest in IBS and General Gastroenterology, including hemorrhoids and other ano-rectal disorders. Dr. Zamir has held a variety of leadership roles in the local community, including as a Clinical Assistant Professor at Rutgers RWJ Medical School and as President of the Medical Staff at RWJ University Hospital Hamilton.

Please note that Maniya Health Medical Group does not employ or in any way supervise Dr. Zafar Zamir, MD. He is employed by Hamilton Gastroenterology. Patients should contact Hamilton GI's offices directly for all questions concerning their GI treatment.