5
13 Ratings with 3 written Reviews
Summary
Dr. Zachary Marwil is a gastroenterologist and internal medicine specialist with 17 years of experience treating digestive health conditions. He earned his medical degree from St. Georges University School of Medicine and completed his residency at SUNY Health Science Center in Brooklyn. Dr. Marwil speaks both English and Italian, helping him connect with a diverse patient population.
Dr. Marwil practices at several locations across Long Island, New York, including Nassau University Medical Center, Long Island Jewish Valley Stream, and Glen Cove Hospital. He specializes in treating colon polyps, GERD, and esophagitis using advanced diagnostic techniques. His expertise includes performing colonoscopies, lower GI endoscopies, and pathology tests to provide comprehensive digestive care. Patients consistently rate Dr. Marwil highly for his care, giving him an average rating of 5.0.
Dr. Marwil practices at several locations across Long Island, New York, including Nassau University Medical Center, Long Island Jewish Valley Stream, and Glen Cove Hospital. He specializes in treating colon polyps, GERD, and esophagitis using advanced diagnostic techniques. His expertise includes performing colonoscopies, lower GI endoscopies, and pathology tests to provide comprehensive digestive care. Patients consistently rate Dr. Marwil highly for his care, giving him an average rating of 5.0.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 17 years of experience
- speaks English, Italian
- Suny Health Science Center/Brooklyn
- 3 written reviews
- 2 specialties
- 7 areas of expertise
- 2 board certifications
- 3 hospital affiliations
- 6 office locations
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
Office Locations
Dr. Zachary Robert Marwil has 6 locationsGastrointestinal Specialist Of Long Island
3019 Merrick RdWantagh, NY 11793 Tel: (516) 785-8075
Mon9:00 am - 6:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 6:00 pm
Fri9:00 am - 4:00 pm
SatClosed
SunClosed
Endoscopy Center Of Long Island
711 Stewart AveGarden City, NY 11530 Tel: (516) 227-3254
Mon7:00 am - 4:00 pm
Tue7:00 am - 4:00 pm
Wed7:00 am - 4:00 pm
Thu7:00 am - 4:00 pm
Fri7:00 am - 4:00 pm
SatClosed
SunClosed
Gastrointestinal Specialist Of Long Island
306 Hempstead AveMalverne, NY 11565Mon9:00 am - 6:00 pm
Tue9:00 am - 6:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 3:00 pm
SatClosed
SunClosed
Compare with Similar Doctors
 |  |  |  |
| Dr. Zachary Robert Marwil, MD | Chimdi Mfebe, APRN | Lynn Collette-Zachar, APRN | Ashley Anderson, APRN |
| Gastroenterology | Gastroenterology | Gastroenterology | Gastroenterology |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 17 Years of Experience | |||
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English, Italian | Speaks English | Speaks English | Speaks English |
| Wantagh , NY | Little Rock , AR | Tallahassee , FL | SACRAMENTO , CA |
| Med School: St Georges University School Of Medicine | Med School: Chamberlain University College of Nursing | Med School: Regis College | Med School: East Tennessee State University - Quillen College of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Zachary Robert Marwil
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Zachary Robert Marwil has the following 2 specialties
Specialty Expertise
Dr. Zachary Robert Marwil has the following 7 areas of expertise
Certifications, License, & Education
17 Years Experience
Dr. Zachary Robert Marwil holds an expired medical license in the state of New York.
Medical License
Medical Doctor with an expired medical license in the state of New York that expired in 2026.
Education & Training
Residency
Completed their residency at Suny Health Science Center/Brooklyn.
Medical School
Graduated from St Georges University School Of Medicine in 2009.
NPI Number
Dr. Marwil's NPI number is 1609002229.
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Frequently Asked Questions
- Where is Dr. Zachary Marwil's office located?
- Dr. Zachary Marwil's office is located at 3019 Merrick Rd, Wantagh, NY, 11793.
- How can I make an appointment with Dr. Zachary Marwil?
- You can find contact information for Dr. Zachary Marwil here on Vitals.
- Which hospitals is Dr. Zachary Marwil affiliated with?
- Dr. Zachary Marwil is affiliated with Nassau University Medical Center, Long Island Jewish Valley Stream, and Glen Cove Hospital.
- Does Dr. Zachary Marwil accept virtual/telehealth appointments?
- Dr. Zachary Marwil has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- What languages does Dr. Zachary Marwil speak?
- Dr. Zachary Marwil speaks English and Italian.
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