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Alexander Gruenstein, DDS
NPI 1225770233 · General Practice Dentistry · Newark, NJ
Alexander Gruenstein, DDS is a General Practice Dentistry provider in Newark, NJ (NPI 1225770233).
Provider details
- NPI number
- 1225770233
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Dental Providers
Student, Health Care
Profile Score
Established profile(54/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
83% 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
201 Lyons Ave
Newark, NJ 07112-2027
Phone: (973) 926-7642
Street-level locationGet directions
Mailing address
201 Lyons Ave
Newark, NJ 07112-2027
Registry dates
- Enumerated
- 2022-04-11
- Last updated
- 2024-06-20
- Certified
- 2024-06-20
Frequently asked questions
- What is Alexander Gruenstein's NPI number?
- Alexander Gruenstein's National Provider Identifier (NPI) is 1225770233, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Gruenstein's specialty?
- Alexander Gruenstein is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Alexander Gruenstein located?
- Alexander Gruenstein's practice location on file with NPPES is 201 Lyons Ave, Newark, NJ 07112-2027.
- What is Alexander Gruenstein's phone number?
- The practice phone number listed in the NPPES registry for Alexander Gruenstein is (973) 926-7642.
- Is Alexander Gruenstein's NPI active?
- Yes — Alexander Gruenstein's NPI (1225770233) is active in the NPPES registry as of the last update on 2024-06-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.