NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mary C Shellnutt, APRN, AGCNS-BC

Clinical Nurse Specialist in Tyler, TX · enumerated 2015.

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

National Provider Identifier

1811366552

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mrs. Mary C Shellnutt
Credential APRN, AGCNS-BC
Sex Female
Practice address 501 Saunders Ave Ste 320, Tyler, TX, 75702
Phone (903) 606-5140
Enumeration date Sep 23, 2015
Last updated in NPPES Mar 12, 2024

Taxonomy & licenses

364SA2200X Adult Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License AP128617 (TX) Secondary
364S00000X Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License AP128617 (TX) Primary
364SG0600X Gerontology Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License AP128617 (TX) Secondary
APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN credential

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 Mary Shellnutt?
The National Provider Identifier (NPI) for Mary Shellnutt is 1811366552, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary Shellnutt practice?
The practice location on file with NPPES is in Tyler, TX. 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 2024-03-12.