NPI Portal NPI Lookup & Verification

Mrs. Gretta Lynn Gilliam, DNP, ARNP, FNP-C

Mrs. Gretta Lynn Gilliam is a Family Nurse Practitioner provider (Nurse Practitioner) practicing in Springfield, MO, registered in the NPPES registry with NPI 1821297698 since 2007. The credential DNP stands for Doctor of Nursing Practice. Practices at Fayetteville Vamc (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum

NPI 1821297698
Entity type Individual (Type 1)
Name Mrs. Gretta Lynn Gilliam
Credential DNP, ARNP, FNP-C
Sex Female
Practice address 1850 W REPUBLIC RD, Springfield, MO, 65807
Phone 4178914800
Fax 4178914913
Enumeration date 2007-07-12
Last updated in NPPES 2021-03-30

Taxonomy & licenses

Taxonomy code Specialty Primary License State
363LA2200X Adult Health Nurse Practitioner Secondary 138082 MO
363LF0000X Family Nurse Practitioner Primary 138082 MO

DNP — Doctor of Nursing Practice: A clinical doctorate for advanced practice nurses. About the DNP credential

Copy-ready billing details
Provider: Gretta Gilliam, DNP, ARNP, FNP-C
NPI: 1821297698
Taxonomy: 363LF0000X (Family Nurse Practitioner)
Address: 1850 W REPUBLIC RD, Springfield, MO, 65807

Other providers at this practice address

NPI Name Type Specialty Location
1487630166 Shan-Liang Liu Individual Physical Medicine & Rehabilitation Physician Springfield, MO
1609856483 Keith Eiche Individual Clinical Psychologist Springfield, MO
1417900671 Fayetteville Vamc Organization VA Clinic/Center Springfield, MO
1275572943 Stephen Levine Individual Foot & Ankle Surgery Podiatrist Springfield, MO
1477654796 Teresa Sondermann Individual Family Nurse Practitioner Springfield, MO
1760541171 Randal Hamric Individual Family Medicine Physician Springfield, MO
1669891016 Christina Capps Individual Internal Medicine Physician Springfield, MO
1124430988 Hilary Price Individual Optometrist Springfield, MO

Verify this record

Cross-check NPI 1821297698 against the authoritative CMS record: view Mrs. Gretta Lynn Gilliam on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What specialty is Gretta Gilliam?
Gretta Gilliam is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-03-30.