NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Hammer Incorporated

Durable Medical Equipment & Medical Supplies in Ottumwa, IA · enumerated 2006 · authorized official Matthew Flatt, President.

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

National Provider Identifier

1083687537

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Hammer Incorporated
Other name <Unavail>
Practice address 107 W Main St, Ottumwa, IA, 52501
Phone (641) 684-6800
Fax (641) 684-6682
Enumeration date Feb 7, 2006
Last updated in NPPES Apr 17, 2026

Taxonomy & classification

332B00000X Durable Medical Equipment & Medical Supplies Suppliers Secondary
332B00000X Durable Medical Equipment & Medical Supplies Suppliers Primary

Authorized official

Name Matthew Flatt
Title President
Phone (515) 246-2034

Other identifiers

Identifier Type State Issuer
35264 Other IA WELLMARK PROVIDER #
0291518 Medicaid IA -
35264 Other IA WELLMARK PROVIDER NUMBER

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

Who is the authorized official for Hammer Incorporated?
NPPES lists Matthew Flatt (President) as the authorized official for this organization.
What is the NPI number for Hammer Incorporated?
The NPI for Hammer Incorporated is 1083687537, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-17.