Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Lea Sieren, LISW
Counselor in Ottumwa, IA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538264445
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Registry record
Entity type Individual (Type 1)
Name Lea Sieren
Credential LISW
Sex Female
Practice address 1112 N Van Buren Ave, Ottumwa, IA, 52501
Phone (641) 684-7744
Enumeration date Sep 14, 2006
Last updated in NPPES Jul 9, 2007
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 11698 | Other | IA | INDIVIDUAL PROVIDER # |
| 43609 | Other | IA | INDIVIDUAL PROVIDER # |
| 421525352-02 | Other | IA | INDIVIDUAL PROVIDER # |
| 2776088 | Medicaid | IA | - |
| 260048928 | Other | IA | INDIIDUAL PROVIDER # |
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
Is NPI 1538264445 active?
Yes, as of the latest NPPES snapshot, NPI 1538264445 is active (record last updated 2007-07-09).
How do I verify Lea Sieren's NPI record?
Cross-check NPI 1538264445 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.