Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Eileen Ersteniuk, CSWR
Social Worker in Newark, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1902826837
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Registry record
Entity type Individual (Type 1)
Name Ms. Eileen Ersteniuk
Credential CSWR
Sex Female
Practice address 1202 Driving Park Ave, Newark, NY, 14513
Phone (315) 331-2030
Fax (315) 331-4529
Enumeration date Jul 21, 2006
Last updated in NPPES May 30, 2017
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 0301071 (NY) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| MD449P | Other | NY | PREFERRED CARE |
| P010030107 | Other | NY | BLUE CHOICE & CHILD HLTH |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does Eileen Ersteniuk practice?
The practice location on file with NPPES is in Newark, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Eileen Ersteniuk?
The National Provider Identifier (NPI) for Eileen Ersteniuk is 1902826837, a Type 1 (individual) record in the CMS NPPES registry.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-05-30.