Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Kathryn Ashby Stillman, FNP-C

Family Nurse Practitioner in Wilmington, DE · enumerated 2013 · practices at Life at St. Francis Healthcare, Inc..

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

National Provider Identifier

1609202126

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Registry record

Entity type Individual (Type 1)

Name Mrs. Kathryn Ashby Stillman

Credential FNP-C

Sex Female

Practice address 1072 Justison St, Wilmington, DE, 19801

Phone (302) 660-3394

Enumeration date Sep 16, 2013

Last updated in NPPES Aug 29, 2019

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License SP013186 (PA) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License LG-0000684 (DE) 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 Kathryn Stillman?

The National Provider Identifier (NPI) for Kathryn Stillman is 1609202126, a Type 1 (individual) record in the CMS NPPES registry.

Where does Kathryn Stillman practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-08-29.