Billy Clowney, M.D.
NPI 1477512101 · Hematology & Oncology Physician · Sumter, SC
Billy Clowney, M.D. is a Hematology & Oncology Physician provider in Sumter, SC (NPI 1477512101).
Provider details
- NPI number
- 1477512101
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 14777 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2006-03-21
- Last updated
- 2009-11-04
Frequently asked questions
- What is Billy Clowney's NPI number?
- Billy Clowney's National Provider Identifier (NPI) is 1477512101, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Billy Clowney's specialty?
- Billy Clowney is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Billy Clowney located?
- Billy Clowney's practice location on file with NPPES is 1105 N Lafayette Dr, Sumter, SC 29150-2913.
- What is Billy Clowney's phone number?
- The practice phone number listed in the NPPES registry for Billy Clowney is (803) 934-8833.
- Is Billy Clowney's NPI active?
- Yes — Billy Clowney's NPI (1477512101) is active in the NPPES registry as of the last update on 2009-11-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.