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

Individual provider Gastroenterology Physician · NPI 1700988797

Dr. Marc A Leaf, MD is a Gastroenterology Physician in Brooklyn, New York. Licensed in New York. Registered with an NPI since 2006.

Licensed in
NY
In the registry since
2006
Specialties on file
2
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

8023 19th Ave
Brooklyn, NY 11214-1753
Phone: (718) 232-3003
Fax: (718) 232-5445
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 151457 (NY)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 151457 (NY)

Record details

NPI number1700988797
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 1, 2006
Last updated in NPPESMarch 14, 2011

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