Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Erin Claire Oneill
Behavior Analyst in Quincy, MA · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1275127441
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Registry record
Entity type Individual (Type 1)
Name Mrs. Erin Claire Oneill
Sex Female
Practice address 39 Gladstone St, Quincy, MA, 02171
Phone (617) 842-2140
Enumeration date Feb 26, 2021
Last updated in NPPES Feb 26, 2021
Taxonomy & licenses
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 Erin Oneill practice?
The practice location on file with NPPES is in Quincy, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Erin Oneill?
The National Provider Identifier (NPI) for Erin Oneill is 1275127441, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-26.