NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Linda V Callahan, RD, LDN

Registered Dietitian in Ringgold, GA · enumerated 2012.

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

National Provider Identifier

1689920456

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Registry record

Entity type Individual (Type 1)
Name Linda V Callahan
Credential RD, LDN
Sex Female
Practice address Ringgold, GA, 30736
Enumeration date Jul 31, 2012
Last updated in NPPES Jul 18, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License LDN 209 (TN) Primary
133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License LD 206 (GA) Secondary
101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License LPC/MHSP 2178 (TN) Secondary
RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD credential

Other identifiers

Identifier Type State Issuer
LD 206 Other GA LICENSED DIETITIAN
389163 Other - REGISTERED DIETITIAN
LDN 209 Other TN LICENSED DIETITIAN / NUTRITIONIST
LPC/MHSP 2178 Other TN LICENSED PROFESSIONAL COUNSELOR/ MENTAL HEALTH SERVICES PROVIDER

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.

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Frequently asked questions

What is the NPI number for Linda Callahan?
The National Provider Identifier (NPI) for Linda Callahan is 1689920456, a Type 1 (individual) record in the CMS NPPES registry.
Where does Linda Callahan practice?
The practice location on file with NPPES is in Ringgold, GA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-07-18.