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

Dr. Robert John Greenstein, MD

Individual provider Surgery Physician · NPI 1477753044

Dr. Robert John Greenstein, MD is a Surgery Physician in Tenafly, New Jersey. Licensed in New York. Registered with an NPI since 2007.

Licensed in
NY
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

73 Windsor Rd
Tenafly, NJ 07670-2615
Phone: (201) 568-4343
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 137544-1 (NY)

Record details

NPI number1477753044
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 23, 2007
Last updated in NPPESJuly 23, 2007
Mailing address73 Windsor Rd, Tenafly, NJ 07670-2615