Nathanial Clark, D.C., S.c.
NPI 1477736221 · Chiropractor · Gurnee, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathanial Clark, D.C., S.c. is a Chiropractor organization in Gurnee, IL (NPI 1477736221).
Provider details
- NPI number
- 1477736221
- Entity type
- Organization
- Primary specialty
- ChiropractorChiropractic Providers
- Organization subpart
- No
- Authorized official
- Nathanial Clark, Owner/President(847) 244-8600
- License
- 038011046 (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
18 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
- 2007-12-14
- Last updated
- 2011-03-28
Frequently asked questions
- What is Nathanial Clark, D.C., S.c.'s NPI number?
- Nathanial Clark, D.C., S.c.'s National Provider Identifier (NPI) is 1477736221, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Nathanial Clark, D.C., S.c.?
- Nathanial Clark, D.C., S.c. is classified in the NPPES registry as Chiropractor (Chiropractic Providers).
- Where is Nathanial Clark, D.C., S.c. located?
- Nathanial Clark, D.C., S.c.'s practice location on file with NPPES is 1475 N Dilleys Rd, Gurnee, IL 60031-1708.
- What is Nathanial Clark, D.C., S.c.'s phone number?
- The practice phone number listed in the NPPES registry for Nathanial Clark, D.C., S.c. is (847) 244-8600.
- Does Nathanial Clark, D.C., S.c. accept Medicare?
- Nathanial Clark, D.C., S.c. 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 Nathanial Clark, D.C., S.c.?
- The authorized official listed on Nathanial Clark, D.C., S.c.'s NPPES record is Nathanial Clark, Owner/President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Nathanial Clark, D.C., S.c.'s NPI active?
- Yes — Nathanial Clark, D.C., S.c.'s NPI (1477736221) is active in the NPPES registry as of the last update on 2011-03-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.