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

Jeffrey O Greenberg, MD

Individual provider Internal Medicine Physician · NPI 1134153885

Jeffrey O Greenberg, MD is an Internal Medicine Physician in Watertown, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
In the registry since
2006
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

101 Walnut St
Watertown, MA 02472-4054
Phone: (781) 291-3042
Fax: (857) 343-8192
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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 227342 (MA)

Record details

NPI number1134153885
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 10, 2006
Last updated in NPPESNovember 4, 2020
Certification dateNovember 4, 2020

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