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Gastrointestinal Specialists of Long Island

5.0

About this business

Specialties: Gastrointestinal Specialists of Long Island (GISLI) is a state-of-the-art gastroenterology practice providing comprehensive digestive and liver care to all adults throughout Long Island. With two convenient offices in Wantagh and Malverne, New York, Drs. Novak and Marwil provide patients with unparalleled preventive care, advanced diagnostics, and effective treatments. The gastroenterologists at GISLI offer patients more than 30 years of experience. They've created a premier endoscopy center that ensures patient... read more

Location details

3019 Merrick Rd, Wantagh, NY, 11793, United States

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WeekdayScheduleStatus
Mon9:00 a.m. to 6:00 p.m.
Tue9:00 a.m. to 6:00 p.m.
Wed9:00 a.m. to 5:00 p.m.
Thu9:00 a.m. to 5:00 p.m.
Fri9:00 a.m. to 3:00 p.m.
SatClosed
SunClosed
5.0186 reviews
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Malvin Lawrence's profile image
Malvin Lawrence 
on Google
4 days ago

Great doctor. Concerned about your problems. Wouldn't go to any other doctor. Did 2 procedures and both went smooth. 

Thomas Sperandeo's profile image
Thomas Sperandeo 
on Google
4 days ago
Felix Karafin's profile image
Felix Karafin 
on Google
2 months ago

Professional, timely. Good bedside manner 

JoAnn Distler's profile image
JoAnn Distler 
on Google
2 months ago

I have been a patient since 2007 when I was very sick. Dr. Novak conducted thorough testing, diagnosed me and treated me. I see him annually. I live 45 minutes away. Well worth the trip. He takes the time to answer and explain any concerns you may have. My children now are patients. Health is Wealth. Highly recommend. 

John Davis's profile image
John Davis 
on Google
3 months ago
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Frequently asked questions about Gastrointestinal Specialists of Long Island

How is Gastrointestinal Specialists of Long Island rated?

Gastrointestinal Specialists of Long Island has a 5 star rating with 186 reviews. 

When is Gastrointestinal Specialists of Long Island open?

Gastrointestinal Specialists of Long Island is open now. It will close at 5:00 p.m.  

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