Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Teresa L O'Connor, LCSW-R
Social Worker in Wellsville, NY · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1871780882
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Registry record
Entity type Individual (Type 1)
Name Teresa L O'Connor
Credential LCSW-R
Sex Female
Practice address 75 Pine St, Wellsville, NY, 14895
Phone (585) 593-2261
Fax (585) 593-2261
Enumeration date Oct 3, 2007
Last updated in NPPES May 3, 2022
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 084628-1 (NY) Primary
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
What is the NPI number for Teresa O'Connor?
The National Provider Identifier (NPI) for Teresa O'Connor is 1871780882, a Type 1 (individual) record in the CMS NPPES registry.
Where does Teresa O'Connor practice?
The practice location on file with NPPES is in Wellsville, NY. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-05-03.