Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Erlin Nelson, BSW
Clinical Social Worker in Athol, MA · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1366104333
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Registry record
Entity type Individual (Type 1)
Name Erlin Nelson
Credential BSW
Sex Male
Practice address 2033 Main St, Athol, MA, 01331
Phone (978) 249-9490
Enumeration date Oct 7, 2021
Last updated in NPPES Oct 7, 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 Erlin Nelson practice?
The practice location on file with NPPES is in Athol, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Erlin Nelson?
The National Provider Identifier (NPI) for Erlin Nelson is 1366104333, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-07.