Clifton Williams, MD
NPI 1326009606 · Specialist · Spartanburg, SC
Clifton Williams, MD is a Specialist provider in Spartanburg, SC (NPI 1326009606).
Provider details
- NPI number
- 1326009606
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 10396 (SC)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$22 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-28
- Last updated
- 2008-01-10
Frequently asked questions
- What is Clifton Williams's NPI number?
- Clifton Williams's National Provider Identifier (NPI) is 1326009606, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clifton Williams's specialty?
- Clifton Williams is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Clifton Williams located?
- Clifton Williams's practice location on file with NPPES is 391 Serpentine Dr, Spartanburg, SC 29303-3083.
- What is Clifton Williams's phone number?
- The practice phone number listed in the NPPES registry for Clifton Williams is (864) 585-8221.
- Is Clifton Williams's NPI active?
- Yes — Clifton Williams's NPI (1326009606) is active in the NPPES registry as of the last update on 2008-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.