Lars Armainsson, MD
NPI 1336259514 · Internal Medicine Physician · Chicago, IL
Lars Armainsson, MD is a Internal Medicine Physician provider in Chicago, IL (NPI 1336259514).
Provider details
- NPI number
- 1336259514
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036099623 (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 tenure38% of score
19 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
- 2006-08-30
- Last updated
- 2021-05-26
- Certified
- 2021-05-26
Frequently asked questions
- What is Lars Armainsson's NPI number?
- Lars Armainsson's National Provider Identifier (NPI) is 1336259514, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lars Armainsson's specialty?
- Lars Armainsson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lars Armainsson located?
- Lars Armainsson's practice location on file with NPPES is 3860 W Ogden Ave, Chicago, IL 60623-2460.
- What is Lars Armainsson's phone number?
- The practice phone number listed in the NPPES registry for Lars Armainsson is (872) 588-3000.
- Is Lars Armainsson's NPI active?
- Yes — Lars Armainsson's NPI (1336259514) is active in the NPPES registry as of the last update on 2021-05-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.