NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joan Summers Willhoit, LISW

Clinical Social Worker in Ottumwa, IA · enumerated 2007 · practices at First Resources Corp.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1437201258

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Joan Summers Willhoit
Credential LISW
Sex Female
Practice address 102 N Hancock St, Ottumwa, IA, 52501
Phone (641) 683-1302
Fax (641) 683-1309
Enumeration date Jan 18, 2007
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 00854 (IA) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Joan Summers Willhoit?
The National Provider Identifier (NPI) for Joan Summers Willhoit is 1437201258, a Type 1 (individual) record in the CMS NPPES registry.
Where does Joan Summers Willhoit 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

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.