Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Zachary R. Marwil, MD

Individual provider Gastroenterology Physician · NPI 1609002229

Dr. Zachary R. Marwil, MD is a Gastroenterology in Wantagh, New York. Qualified in 2009, 17 years ago. Practices with Gastrointestinal Specialist of Long Island, PC, a 2-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
17
Licensed in
NY
In the registry since
2009
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3019 Merrick Rd
Wantagh, NY 11793-4329
Phone: (516) 785-8075
Fax: (516) 785-8139
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 268414 (NY)

Record details

NPI number1609002229
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 10, 2009
Last updated in NPPESMarch 22, 2021
Certification dateMarch 22, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Gastrointestinal Specialist Of Long Island, P.C. — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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