Robert G. Mahon, MD
Otolaryngology Physician · Greenville, SC
Robert G. Mahon, MD is an otolaryngology physician with a practice address in Greenville, South Carolina, and NPI 1336141167, issued on Aug 11, 2005. Check the license (South Carolina 4693, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Robert G. Mahon
- Credential
- MD
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- 4693 SC
Self-reported in NPPES; status is on the state search - Practice location
- 4200 E North St Ste 5, Greenville, SC 29615
- Phone
- (864) 234-7815
- Enumerated
- Aug 11, 2005
- Record last updated
- Jun 22, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (864) 234-7846
- Medicaid ID
- 046934 SC
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 197 in South Carolina → Look up another NPI →
Verify Robert G. Mahon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 4693Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average otolaryngology physician in 2024
11 Medicare Part D claims, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.
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.
Robert G. Mahon among 197 otolaryngology physician records in South Carolina
Robert G. Mahon, MD is one of 197 otolaryngology physician records with a practice address in South Carolina. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2018 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in South Carolina
There are 197 otolaryngology physician records in South Carolina.
All 197 in South Carolina → Every provider in Greenville → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Wesley Abadie, M.D.Greenville, SC 296151205810140
- Michael Beasley, MDGreenville, SC 296151306889035
- Kevin CarlsonGreenville, SC 296151124523170
- W Easley, MDGreenville, SC 296151518942044
- Augustus Goforth, MDGreenville, SC 296151013915347
- Jeffrey Jorgensen, MDGreenville, SC 296151912061599
- Mark Landry, MDGreenville, SC 296151215566104
- John Phillips, M.D.Greenville, SC 296151790731412
Common questions
What is Robert G. Mahon, MD's NPI number?
Robert G. Mahon, MD's National Provider Identifier (NPI) is 1336141167, issued on Aug 11, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert G. Mahon, MD located?
The NPPES record lists a practice address at 4200 E North St Ste 5, Greenville, SC, 29615. Phone: (864) 234-7815. Providers update this record themselves, so call before visiting.
How can I verify Robert G. Mahon, MD's license?
NPPES lists South Carolina license number 4693, 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 G. Mahon, MD prescribe under Medicare Part D?
In 2024, Robert G. Mahon, MD had 11 Medicare Part D claims; the average among otolaryngology physician prescribers was 541. 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.