John Lewenczuk, DC
NPI 1336223197 · Chiropractor · Downers Grove, IL
John Lewenczuk, DC is a Chiropractor provider in Downers Grove, IL (NPI 1336223197).
Provider details
- NPI number
- 1336223197
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- DC
- Sex
- Male
- Sole proprietor
- Yes
- License
- 038007330 (IL)
Specialties & taxonomies
Chiropractic Providers
Chiropractic Providers
Chiropractic Providers
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
- 2006-10-25
- Last updated
- 2010-07-12
Frequently asked questions
- What is John Lewenczuk's NPI number?
- John Lewenczuk's National Provider Identifier (NPI) is 1336223197, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Lewenczuk's specialty?
- John Lewenczuk is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is John Lewenczuk located?
- John Lewenczuk's practice location on file with NPPES is 2137 63rd Street, Downers Grove, IL 60516.
- What is John Lewenczuk's phone number?
- The practice phone number listed in the NPPES registry for John Lewenczuk is (630) 271-9900.
- Is John Lewenczuk's NPI active?
- Yes — John Lewenczuk's NPI (1336223197) is active in the NPPES registry as of the last update on 2010-07-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.