Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Lora Mattson
Social Worker in Ottumwa, IA · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639525090
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Registry record
Entity type Individual (Type 1)
Name Lora Mattson
Sex Female
Practice address 2035 Chester Ave, Ottumwa, IA, 52501
Phone (210) 615-3483
Fax (210) 593-9863
Enumeration date May 4, 2016
Last updated in NPPES May 4, 2016
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 Lora Mattson?
The National Provider Identifier (NPI) for Lora Mattson is 1639525090, a Type 1 (individual) record in the CMS NPPES registry.
Where does Lora Mattson practice?
The practice location on file with NPPES is in Ottumwa, IA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-05-04.