Thomas L. Michalsen DO Ltd
NPI 1841214368 · General Practice Physician · Kirkland, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas L. Michalsen DO Ltd is a General Practice Physician organization in Kirkland, IL (NPI 1841214368).
Provider details
- NPI number
- 1841214368
- Entity type
- Organization
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Thomas Michalsen, President(815) 522-3301
- License
- 036096167 (IL)
Specialties & taxonomies
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
Other names (DBA / former)
- Doing business as
- D/B/A Kirkland Medical Clinic
- Doing business as
- D/B/A Kirkland Medical Clinic
Registry dates
- Enumerated
- 2006-07-27
- Last updated
- 2022-08-22
- Certified
- 2022-08-22
Frequently asked questions
- What is Thomas L. Michalsen DO Ltd's NPI number?
- Thomas L. Michalsen DO Ltd's National Provider Identifier (NPI) is 1841214368, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Thomas L. Michalsen DO Ltd?
- Thomas L. Michalsen DO Ltd is classified in the NPPES registry as General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas L. Michalsen DO Ltd located?
- Thomas L. Michalsen DO Ltd's practice location on file with NPPES is 406 South 5th Street, Kirkland, IL 60146.
- What is Thomas L. Michalsen DO Ltd's phone number?
- The practice phone number listed in the NPPES registry for Thomas L. Michalsen DO Ltd is (815) 522-3301.
- Does Thomas L. Michalsen DO Ltd accept Medicare?
- Thomas L. Michalsen DO Ltd is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Thomas L. Michalsen DO Ltd?
- The authorized official listed on Thomas L. Michalsen DO Ltd's NPPES record is Thomas Michalsen, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Thomas L. Michalsen DO Ltd's NPI active?
- Yes — Thomas L. Michalsen DO Ltd's NPI (1841214368) is active in the NPPES registry as of the last update on 2022-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.