Lars Johnson, MD
NPI 1619461928 · Pulmonary Disease Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lars Johnson, MD is a Pulmonary Disease Physician provider in Chicago, IL (NPI 1619461928).
Provider details
- NPI number
- 1619461928
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036165458 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$172 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-06-20
- Last updated
- 2023-07-08
- Certified
- 2023-07-07
Frequently asked questions
- What is Lars Johnson's NPI number?
- Lars Johnson's National Provider Identifier (NPI) is 1619461928, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lars Johnson's specialty?
- Lars Johnson is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Lars Johnson located?
- Lars Johnson's practice location on file with NPPES is 420 E Superior St Ste 9-900, Chicago, IL 60611-4494.
- What is Lars Johnson's phone number?
- The practice phone number listed in the NPPES registry for Lars Johnson is (312) 503-7975.
- Does Lars Johnson accept Medicare?
- Lars Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lars Johnson's NPI active?
- Yes — Lars Johnson's NPI (1619461928) is active in the NPPES registry as of the last update on 2023-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.