Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Merlyn Johnson, OD
Optometrist in Russellville, KY · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1780578534
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Registry record
Entity type Individual (Type 1)
Name Merlyn Johnson
Credential OD
Sex Female
Practice address 102 Armory Dr, Russellville, KY, 42276
Phone (270) 725-8382
Enumeration date Jun 5, 2025
Last updated in NPPES Oct 15, 2026
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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.
Frequently asked questions
What is the NPI number for Merlyn Johnson?
The National Provider Identifier (NPI) for Merlyn Johnson is 1780578534, a Type 1 (individual) record in the CMS NPPES registry.
Where does Merlyn Johnson practice?
The practice location on file with NPPES is in Russellville, 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 2026-10-15.