Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Katherine Gillingham, NP-C

Family Nurse Practitioner in Simpsonville, SC · enumerated 2010.

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

National Provider Identifier

1154634061

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mary Katherine Gillingham

Credential NP-C

Sex Female

Practice address 35 Ray E Talley Ct, Simpsonville, SC, 29680

Phone (864) 967-7028

Fax (864) 228-0915

Enumeration date Jul 20, 2010

Last updated in NPPES Oct 22, 2018

Taxonomy & licenses

163WC0200X Critical Care Medicine Registered Nurse Nursing Service Providers · License 51001 (SC) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APN.4297 APRN (SC) 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

Is NPI 1154634061 active?

Yes, as of the latest NPPES snapshot, NPI 1154634061 is active (record last updated 2018-10-22).

How do I verify Mary Gillingham's NPI record?

Cross-check NPI 1154634061 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-22.