Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Deborah L Stephenson, ARNP

Family Nurse Practitioner in Ottumwa, IA · enumerated 2010 · practices at Mercy Medical Center-Centerville.

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

National Provider Identifier

1134443849

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Registry record

Entity type Individual (Type 1)

Name Deborah L Stephenson

Credential ARNP

Sex Female

Practice address 522 N Hancock St, Ottumwa, IA, 52501

Phone (641) 682-4594

Fax (641) 682-2123

Enumeration date Mar 24, 2010

Last updated in NPPES Dec 27, 2017

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License A-087722 (IA) Primary

Other identifiers

Identifier	Type	State	Issuer
1134443849	Medicaid	IA	-
P01120963	Other	IA	RR MEDICARE

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

Where does Deborah Stephenson practice?

The practice location on file with NPPES is in Ottumwa, IA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Deborah Stephenson?

The National Provider Identifier (NPI) for Deborah Stephenson is 1134443849, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-12-27.