Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
L Ellis Arnold, MSW
Social Worker in Decorah, IA · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1922977594
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Registry record
Entity type Individual (Type 1)
Name L Ellis Arnold
Credential MSW
Sex Male
Practice address 806 Commerce Dr, Decorah, IA, 52101
Phone (563) 387-8028
Fax (563) 334-8273
Enumeration date Nov 3, 2025
Last updated in NPPES Nov 3, 2025
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
What is the NPI number for L Arnold?
The National Provider Identifier (NPI) for L Arnold is 1922977594, a Type 1 (individual) record in the CMS NPPES registry.
Where does L Arnold practice?
The practice location on file with NPPES is in Decorah, IA. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-03.