Jack Aizenstein, CO
NPI 1770023806 · Orthotist · New York, NY
Jack Aizenstein, CO is a Orthotist provider in New York, NY (NPI 1770023806).
Provider details
- NPI number
- 1770023806
- Entity type
- Individual
- Primary specialty
- OrthotistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- CO
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Suppliers
- Prosthetic/Orthotic Supplier335E00000X
Suppliers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
Mailing address
Registry dates
- Enumerated
- 2017-03-08
- Last updated
- 2017-03-08
Frequently asked questions
- What is Jack Aizenstein's NPI number?
- Jack Aizenstein's National Provider Identifier (NPI) is 1770023806, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Aizenstein's specialty?
- Jack Aizenstein is listed in the NPPES registry with a primary specialty of Orthotist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Jack Aizenstein located?
- Jack Aizenstein's practice location on file with NPPES is 155 E 55th St, New York, NY 10022-4038.
- What is Jack Aizenstein's phone number?
- The practice phone number listed in the NPPES registry for Jack Aizenstein is (212) 888-7372.
- Is Jack Aizenstein's NPI active?
- Yes — Jack Aizenstein's NPI (1770023806) is active in the NPPES registry as of the last update on 2017-03-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.