Walter Johnson
NPI 1437000924 · Family Nurse Practitioner · Oak Lawn, IL
Walter Johnson is a Family Nurse Practitioner provider in Oak Lawn, IL (NPI 1437000924).
Provider details
- NPI number
- 1437000924
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 209033935 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
- 2026-02-09
- Last updated
- 2026-02-09
- Certified
- 2026-02-09
Frequently asked questions
- What is Walter Johnson's NPI number?
- Walter Johnson's National Provider Identifier (NPI) is 1437000924, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walter Johnson's specialty?
- Walter Johnson is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Walter Johnson located?
- Walter Johnson's practice location on file with NPPES is 4440 W 95th St, Oak Lawn, IL 60453-2600.
- What is Walter Johnson's phone number?
- The practice phone number listed in the NPPES registry for Walter Johnson is (708) 684-7100.
- Is Walter Johnson's NPI active?
- Yes — Walter Johnson's NPI (1437000924) is active in the NPPES registry as of the last update on 2026-02-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.