IndividualActive
William Callahan, D.D.S.
NPI 1831192400 · General Practice Dentistry · Seneca, SC
William Callahan, D.D.S. is a General Practice Dentistry provider in Seneca, SC (NPI 1831192400).
Provider details
- NPI number
- 1831192400
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- D.D.S.
- Sex
- Male
- Sole proprietor
- No
- License
- GA 9232 (GA)
Specialties & taxonomies
Dental Providers
Dental Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
21 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
11012 N Radio Station Rd
Seneca, SC 29678-1142
Phone: (648) 820-8808
Street-level locationGet directions
Mailing address
11012 N Radio Station Rd
Seneca, SC 29678-1142
Registry dates
- Enumerated
- 2005-05-27
- Last updated
- 2020-02-03
- Certified
- 2020-02-03
Frequently asked questions
- What is William Callahan's NPI number?
- William Callahan's National Provider Identifier (NPI) is 1831192400, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Callahan's specialty?
- William Callahan is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is William Callahan located?
- William Callahan's practice location on file with NPPES is 11012 N Radio Station Rd, Seneca, SC 29678-1142.
- What is William Callahan's phone number?
- The practice phone number listed in the NPPES registry for William Callahan is (648) 820-8808.
- Is William Callahan's NPI active?
- Yes — William Callahan's NPI (1831192400) is active in the NPPES registry as of the last update on 2020-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.