Theodore Johnson, MD
NPI 1609523240 · General Practice Physician · Great Lakes, IL
Theodore Johnson, MD is a General Practice Physician provider in Great Lakes, IL (NPI 1609523240).
Provider details
- NPI number
- 1609523240
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101279593 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 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
- 2022-03-03
- Last updated
- 2025-07-09
- Certified
- 2025-07-09
Frequently asked questions
- What is Theodore Johnson's NPI number?
- Theodore Johnson's National Provider Identifier (NPI) is 1609523240, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Theodore Johnson's specialty?
- Theodore Johnson is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Theodore Johnson located?
- Theodore Johnson's practice location on file with NPPES is 3410 Illinois St, Great Lakes, IL 60088-3120.
- What is Theodore Johnson's phone number?
- The practice phone number listed in the NPPES registry for Theodore Johnson is (224) 610-8553.
- Is Theodore Johnson's NPI active?
- Yes — Theodore Johnson's NPI (1609523240) is active in the NPPES registry as of the last update on 2025-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.