William Tarr, M.D.
NPI 1285833814 · Anatomic Pathology & Clinical Pathology Physician · Teterboro, NJ
William Tarr, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Teterboro, NJ (NPI 1285833814).
Provider details
- NPI number
- 1285833814
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA07021700 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-07-13
- Last updated
- 2007-07-13
Frequently asked questions
- What is William Tarr's NPI number?
- William Tarr's National Provider Identifier (NPI) is 1285833814, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Tarr's specialty?
- William Tarr is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is William Tarr located?
- William Tarr's practice location on file with NPPES is 1 Malcolm Ave, Teterboro, NJ 07608-1011.
- What is William Tarr's phone number?
- The practice phone number listed in the NPPES registry for William Tarr is (201) 393-5752.
- Is William Tarr's NPI active?
- Yes — William Tarr's NPI (1285833814) is active in the NPPES registry as of the last update on 2007-07-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.