Clay Crosby, M.D.
Internal Medicine Physician · Piedmont, SC
Clay Crosby, M.D. is an internal medicine physician with a practice address in Piedmont, South Carolina, and NPI 1801200522, issued on Jun 20, 2014. Check the license (South Carolina 37082, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Clay Crosby
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 37082 SC
Self-reported in NPPES; status is on the state search - Practice location
- 1115 Wren School RD, Piedmont, SC 29673
- Phone
- (864) 859-0740
- Enumerated
- Jun 20, 2014
- Entity
- Type 1 · individual
Also registered at 1115 Wren School RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Briggs, M.D.Pediatrics Physician1720309313
- John Goldsmith, M.D.Pediatrics Physician1275792814
- Quinn Hunt, MDPediatrics Physician1588194518
- Gregory Johnson, MDPediatrics Physician1205936556
- Abigail Stoker, MDPediatrics Physician1407478217
- Janie Thomas, PAPhysician Assistant1467902684
Verify Clay Crosby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 37082Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
39% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,709 Medicare Part D claims for 118 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Atorvastatin Calcium123 claims
- Amlodipine Besylate89 claims
- Rosuvastatin Calcium81 claims
- Amlodipine-Valsartan71 claims
- Losartan Potassium62 claims
- Levothyroxine Sodium53 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.
One hospital or facility affiliation
- Prisma Health University Medical GroupPiedmont, SC
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Internal Medicine Physician providers in South Carolina
There are 2,276 internal medicine physician records in South Carolina.
Other internal medicine physician records in South Carolina
- John Abbott, M.D.Sumter, SC1093830762
- Murad Abdelsalam, MDRock Hill, SC1013229756
- Mohammed Abdulfatah, MDOrangeburg, SC1285167023
- Amjad Abdulrahman, MDIrmo, SC1194718841
- Elizabeth Abell, MDSpartanburg, SC1083623805
- Alvin Abinsay, M.D.Marion, SC1689608002
- Izabela Abissi, DOCharleston, SC1376387803
- Tinu Abraham, MDGreenwood, SC1194354399
- Natallia Abramovich, MDSeneca, SC1568647949
- Mohammad Abudalou, MDColumbia, SC1164084653
Common questions
What is Clay Crosby, M.D.'s NPI number?
Clay Crosby, M.D.'s National Provider Identifier (NPI) is 1801200522, issued on Jun 20, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Clay Crosby, M.D. located?
The NPPES record lists a practice address at 1115 Wren School RD, Piedmont, SC, 29673. Phone: (864) 859-0740. Providers update this record themselves, so call before visiting.
How can I verify Clay Crosby, M.D.'s license?
NPPES lists South Carolina license number 37082, 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 Clay Crosby, M.D. prescribe under Medicare Part D?
In 2024, Clay Crosby, M.D. had 1,709 Medicare Part D claims for 118 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.