Top reviews
Nobody walks into the doctor's office looking forward to a colonoscopy. I was nervous because a friend of the family was sick. From the moment I stepped out of my cau there was a gentleman who made it seem I was the most importaShow morent client of the day. The staff was excellent and the facility was clean. Dr. Marshak spoke with me like I was a person. I had both an endiscopy and a colooscopy and it went well (as one could hope a procedure such as that would og). I recommend this office to anyone.
The staff was very professional and answered my questions and have a nice way gods love
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.
Abdominal Pain
Barrett’s Esophagus
Capsule Endoscopy
Celiac Disease
Colon Cancer Screening
Colonoscopy
Constipation
Crohn's Disease
Diarrhea
Diverticulitis
Esophagitis
Female Gastroenterologist
GERD
Gastritis
Heartburn
Hemorrhoids
Irritable Bowel Syndrome
Nausea
Procedures
Rectal Bleeding
Ulcerative Colitis
Ulcers
Upper Endoscopy
We Treat
Locations (2)
Long Island Gastroenterology Specialists
2155 Wantagh Avenue
Wantagh, NY, 11793
Long Island Gastroenterology Specialists
1488 Wantagh Avenue
Wantagh, NY, 11793
More About Dr. Jarred Marshak, MD
NPI Number
1538417027
Provider's Gender
Male
Reviews
Everyone was attentive and helpful
Great staff
Patient and very comforting and caring. Wants to see things through
Awesome makes you feel comfortable
The staff was very professional and answered my questions and have a nice way gods love
Prompt appointment, exemplary patient care, friendly staff, and cleanliness of premises.
Everyone was professional and courteous
Nobody walks into the doctor's office looking forward to a colonoscopy. I was nervous because a friend of the family was sick. From the moment I stepped out of my cau there was a gentleman who made it seem I was the most important client of the day. The staff was excellent and the facility was clean. Dr. Marshak spoke with me like I was a person. I had both an endiscopy and a colooscopy and it went well (as one could hope a procedure such as that would og). I recommend this office to anyone.
