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

William Ellsworth Tarr Jr., MD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1285833814

William Ellsworth Tarr Jr., MD is an Anatomic Pathology & Clinical Pathology Physician in Teterboro, New Jersey. Licensed in New Jersey. Registered with an NPI since 2007.

Licensed in
NJ
In the registry since
2007
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

1 Malcolm Ave Quest Diagnostics Inc
Teterboro, NJ 07608-1011
Phone: (201) 393-5752
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence 25MA07021700 (NJ)

Record details

NPI number1285833814
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 13, 2007
Last updated in NPPESJuly 13, 2007

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