William Walton Roberts, M.D.
Internal Medicine Physician · Greenville, SC
William Walton Roberts, M.D. is an internal medicine physician with a practice address in Greenville, South Carolina, and NPI 1972851145, issued on Aug 20, 2012. Check the license (South Carolina 39525, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William Walton Roberts
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 39525 SC
LL39525 SC
Self-reported in NPPES; status is on the state search - Practice location
- 1809 Wade Hampton Blvd Ste 120, Greenville, SC 29609
- Phone
- (864) 522-5000
- Enumerated
- Aug 20, 2012
- Record last updated
- Mar 4, 2024
- Fax
- (864) 241-9275
- Medicaid ID
- 399254 SC
- Medicare enrollment
- Enrolled (PECOS I20200722003868); accepts Medicare assignment
- Medical or professional school
- Mercer University School Of Medicine, 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,881 in South Carolina → Look up another NPI →
Also registered at 1809 Wade Hampton Blvd Ste 120
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kathryn Brown, APRNFamily Nurse Practitioner1760098735
- Rose Coady, MDInternal Medicine Physician1295024404
- Rebecca Leicht, FNP-CFamily Nurse Practitioner1003459256
- Kristine Leo, NPFamily Nurse Practitioner1366487605
- Matthew McCluskeyFamily Nurse Practitioner1164161758
- Megan McGarel, MDInternal Medicine Physician1891317673
Verify William Walton Roberts in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 39525Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,801 Medicare Part D claims for 254 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 38 claims were for opioids.
Most prescribed
- Atorvastatin Calcium166 claims
- Amlodipine Besylate89 claims
- Levothyroxine Sodium83 claims
- Rosuvastatin Calcium68 claims
- Losartan Potassium67 claims
- Omeprazole65 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Prisma Health University Medical GroupGreenville, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Walton Roberts among 1,881 internal medicine physician records in South Carolina
William Walton Roberts, M.D. is one of 1,881 internal medicine physician records with a practice address in South Carolina. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 56% of them.
- NPI issued2012 · 56% of these records are older, 43% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2016 · median 2006 among the 1,119 with a school on file
- Record last updated2024 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
253 internal medicine physician records list a practice address in Greenville
They are 253 of the 10,264 NPPES records with a practice address in Greenville, and 1,881 internal medicine physician records in South Carolina.
All 1,881 in South Carolina → Every provider in Greenville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Shannon Burgess, M.D.Greenville, SC 296091205198637
- Andrew Burgess, M.D.Greenville, SC 296091427310853
- Brian Clow, M.D.Greenville, SC 296091568738466
- Rose Coady, MDGreenville, SC 296091295024404
- Susan Li, M.D.Greenville, SC 296091457740045
- Megan McGarel, MDGreenville, SC 296091891317673
- Bruce Perlman, MDGreenville, SC 296091619037553
- Anthony Petruso, MDGreenville, SC 296091174847800
Common questions
What is William Walton Roberts, M.D.'s NPI number?
William Walton Roberts, M.D.'s National Provider Identifier (NPI) is 1972851145, issued on Aug 20, 2012. An NPI identifies a provider in billing; it is not a license.
Where is William Walton Roberts, M.D. located?
The NPPES record lists a practice address at 1809 Wade Hampton Blvd Ste 120, Greenville, SC, 29609. Phone: (864) 522-5000. Providers update this record themselves, so call before visiting.
How can I verify William Walton Roberts, M.D.'s license?
NPPES lists South Carolina license number 39525, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Walton Roberts, M.D. prescribe under Medicare Part D?
In 2024, William Walton Roberts, M.D. had 2,801 Medicare Part D claims for 254 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.