William Gilliam, DDS
NPI 1205933223 · General Practice Dentistry · Lancaster, SC
William Gilliam, DDS is a General Practice Dentistry provider in Lancaster, SC (NPI 1205933223).
Provider details
- NPI number
- 1205933223
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- No
- License
- 2718 (SC)
Specialties & taxonomies
Dental 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 165 | 97 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 66 | 41 |
| Chlorhexidine Gluconate | 39 | 21 |
| Azithromycin | 25 | 15 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-20
- Last updated
- 2007-07-09
Frequently asked questions
- What is William Gilliam's NPI number?
- William Gilliam's National Provider Identifier (NPI) is 1205933223, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Gilliam's specialty?
- William Gilliam is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is William Gilliam located?
- William Gilliam's practice location on file with NPPES is 208 E Dunlap St, Lancaster, SC 29720-2511.
- What is William Gilliam's phone number?
- The practice phone number listed in the NPPES registry for William Gilliam is (803) 286-5858.
- Is William Gilliam's NPI active?
- Yes — William Gilliam's NPI (1205933223) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.