Robert C. Greaves, MD
Emergency Medicine Physician · Charleston, SC
Robert C. Greaves, MD is an emergency medicine physician with a practice address in Charleston, South Carolina, and NPI 1629003546, issued on Jul 11, 2006. Check the license (South Carolina 28303, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Robert C. Greaves
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 28303 SC
Self-reported in NPPES; status is on the state search - Practice location
- 171 Ashley Ave, Charleston, SC 29425
- Phone
- (843) 792-1414
- Enumerated
- Jul 11, 2006
- Record last updated
- Nov 19, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 283035 SC
- Medicare enrollment
- Enrolled (PECOS I20051104000334); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,244 in South Carolina → Look up another NPI →
Also registered at 171 Ashley Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Robert C. Greaves in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 28303Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% more Medicare Part D claims than the average emergency medicine physician in 2024
297 Medicare Part D claims for 210 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 41 claims were for opioids.
Most prescribed
- Cephalexin32 claims
- Hydrocodone-Acetaminophen30 claims
- Methylprednisolone21 claims
- Ondansetron Hcl18 claims
- Prednisone17 claims
- Azithromycin13 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
- Broad River Physicians Group, LLCCharleston, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert C. Greaves among 1,244 emergency medicine physician records in South Carolina
Robert C. Greaves, MD is one of 1,244 emergency medicine physician records with a practice address in South Carolina. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 65% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1997 · median 2012 among the 752 with a school on file
- Record last updated2020 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
223 emergency medicine physician records list a practice address in Charleston
They are 223 of the 10,840 NPPES records with a practice address in Charleston, and 1,244 emergency medicine physician records in South Carolina.
All 1,244 in South Carolina → Every provider in Charleston → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Christina Bourne, MDCharleston, SC 294251932183373
- Jeffrey Caporossi, MDCharleston, SC 294251932150166
- Christine Carr, MDCharleston, SC 294251649388695
- Heather Farley, MDCharleston, SC 294251952389769
- Charles Gilman, MDCharleston, SC 294251831207877
- Gregory Hall, M.D.Charleston, SC 294251174574297
- Terry Kowalenko, M.D.Charleston, SC 294251023045085
- Walter Limehouse, MDCharleston, SC 294251083722029
Common questions
What is Robert C. Greaves, MD's NPI number?
Robert C. Greaves, MD's National Provider Identifier (NPI) is 1629003546, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert C. Greaves, MD located?
The NPPES record lists a practice address at 171 Ashley Ave, Charleston, SC, 29425. Phone: (843) 792-1414. Providers update this record themselves, so call before visiting.
How can I verify Robert C. Greaves, MD's license?
NPPES lists South Carolina license number 28303, 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 Robert C. Greaves, MD prescribe under Medicare Part D?
In 2024, Robert C. Greaves, MD had 297 Medicare Part D claims for 210 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.