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

Dr. Abraham Zachary Cheloff, MD, MS

Individual provider Internal Medicine Physician · NPI 1629640644

Dr. Abraham Zachary Cheloff, MD, MS is an Internal Medicine Physician in New York, New York. Licensed in New York. Registered with an NPI since 2021.

Licensed in
NY
In the registry since
2021
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MS — Master of Science
A graduate science degree.

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Practice location Address checks out

550 1st Ave
New York, NY 10016-6402
Phone: (212) 263-7300
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Student in an Organized Health Care Education/Training Program (primary) Taxonomy 390200000X
Internal Medicine Physician Taxonomy 207R00000X · Licence 323662 (NY)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 323662 (NY)

Record details

NPI number1629640644
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , MS
Sole proprietorNo
NPI enumeratedJuly 12, 2021
Last updated in NPPESJune 18, 2025
Certification dateJune 18, 2025

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