Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Ralph R Nix III, MD
Specialist in Mandeville, LA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1427026558
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Registry record
Entity type Individual (Type 1)
Name Dr. Ralph R Nix III
Credential MD
Sex Male
Practice address 1580 W Causeway Approach, Suite 3, Mandeville, LA, 70471
Phone (985) 626-8223
Fax (985) 626-8253
Enumeration date Mar 14, 2006
Last updated in NPPES Jan 28, 2011
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1148491 | Medicaid | LA | - |
| 5B936 | Other | LA | MEDICARE GROUP NUMBER |
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 Ralph Nix?
The National Provider Identifier (NPI) for Ralph Nix is 1427026558, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ralph Nix practice?
The practice location on file with NPPES is in Mandeville, LA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Oliver Whitney Optometrist · Mandeville, LA NPI 1912903162 Marija Lasalle Periodontics · Mandeville, LA NPI 1699873133 Marilu O'Byrne Ophthalmology Physician · Mandeville, LA NPI 1083772453 Ralph R Nix III LLC Specialist · Mandeville, LA NPI 1518084698 Obyrne Eye Clinic, L.L.C. Specialist · Mandeville, LA NPI 1649471335 Oliver Wendall Whitney A Professional Optometry Corp (Apoc) Optometrist · Mandeville, LA NPI 1821223231
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-28.