William Theisen, D.C.
NPI 1861635856 · Chiropractor · Moline, IL
Enrolled with Medicare as Practitioner - Chiropractic · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Theisen, D.C. is a Chiropractor provider in Moline, IL (NPI 1861635856).
Provider details
- NPI number
- 1861635856
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- D.C.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 038.011341 (IL)
Specialties & taxonomies
Chiropractic Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
- 2009-04-07
- Last updated
- 2019-10-29
Frequently asked questions
- What is William Theisen's NPI number?
- William Theisen's National Provider Identifier (NPI) is 1861635856, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Theisen's specialty?
- William Theisen is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is William Theisen located?
- William Theisen's practice location on file with NPPES is 3836 15th Street C, Moline, IL 61265-6217.
- What is William Theisen's phone number?
- The practice phone number listed in the NPPES registry for William Theisen is (309) 281-9761.
- Does William Theisen accept Medicare?
- William Theisen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Theisen's NPI active?
- Yes — William Theisen's NPI (1861635856) is active in the NPPES registry as of the last update on 2019-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.