OrganizationActive
Nathan D. Williamson, D.M.D. LLC
NPI 1770010100 · General Practice Dentistry · Columbia, IL
Nathan D. Williamson, D.M.D. LLC is a General Practice Dentistry organization in Columbia, IL (NPI 1770010100).
Provider details
- NPI number
- 1770010100
- Entity type
- Organization
- Primary specialty
- General Practice DentistryDental Providers
- Organization subpart
- No
- Authorized official
- Nathan Williamson, Dentist/Owner(618) 281-7300
- License
- 019027747 (IL)
Specialties & taxonomies
Dental Providers
Profile Score
Established profile(70/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
240 Admiral Trost Rd
Columbia, IL 62236-2163
Phone: (618) 400-0550
Fax: (618) 400-0824
Street-level locationGet directions
Mailing address
240 Admiral Trost Rd
Columbia, IL 62236-2163
Registry dates
- Enumerated
- 2017-05-16
- Last updated
- 2021-12-21
- Certified
- 2021-12-21
Frequently asked questions
- What is Nathan D. Williamson, D.M.D. LLC's NPI number?
- Nathan D. Williamson, D.M.D. LLC's National Provider Identifier (NPI) is 1770010100, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Nathan D. Williamson, D.M.D. LLC?
- Nathan D. Williamson, D.M.D. LLC is classified in the NPPES registry as General Practice Dentistry (Dental Providers).
- Where is Nathan D. Williamson, D.M.D. LLC located?
- Nathan D. Williamson, D.M.D. LLC's practice location on file with NPPES is 240 Admiral Trost Rd, Columbia, IL 62236-2163.
- What is Nathan D. Williamson, D.M.D. LLC's phone number?
- The practice phone number listed in the NPPES registry for Nathan D. Williamson, D.M.D. LLC is (618) 400-0550.
- Who is the authorized official for Nathan D. Williamson, D.M.D. LLC?
- The authorized official listed on Nathan D. Williamson, D.M.D. LLC's NPPES record is Nathan Williamson, Dentist/Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Nathan D. Williamson, D.M.D. LLC's NPI active?
- Yes — Nathan D. Williamson, D.M.D. LLC's NPI (1770010100) is active in the NPPES registry as of the last update on 2021-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.