NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ruby Carol Duncan, FNP

Family Nurse Practitioner in Whitley City, KY · enumerated 2007.

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

National Provider Identifier

1750426888

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ruby Carol Duncan
Credential FNP
Sex Female
Practice address 65 Center Ave, Whitley City, KY, 42653
Phone (606) 376-2224
Fax (606) 376-2205
Enumeration date Feb 20, 2007
Last updated in NPPES May 5, 2015

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 3004018 (KY) Primary
FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

Other identifiers

Identifier Type State Issuer
78009834 Medicaid KY -
K0248607 Other KY 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

What is the NPI number for Ruby Duncan?
The National Provider Identifier (NPI) for Ruby Duncan is 1750426888, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ruby Duncan practice?
The practice location on file with NPPES is in Whitley City, KY. 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 2015-05-05.