William Johnson, RD, LDN
NPI 1659693257 · Registered Dietitian · Lake Charles, LA
William Johnson, RD, LDN is a Registered Dietitian provider in Lake Charles, LA (NPI 1659693257).
Provider details
- NPI number
- 1659693257
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RD, LDN
- Sex
- Male
- Sole proprietor
- No
- License
- 2043 (LA)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-02-23
- Last updated
- 2010-02-23
Frequently asked questions
- What is William Johnson's NPI number?
- William Johnson's National Provider Identifier (NPI) is 1659693257, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Johnson's specialty?
- William Johnson is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is William Johnson located?
- William Johnson's practice location on file with NPPES is 1000 Walters St, Lake Charles, LA 70607-4647.
- What is William Johnson's phone number?
- The practice phone number listed in the NPPES registry for William Johnson is (337) 475-8100.
- Is William Johnson's NPI active?
- Yes — William Johnson's NPI (1659693257) is active in the NPPES registry as of the last update on 2010-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.