John Charles Ellyn, MD
Specialist · Charleston, SC
John Charles Ellyn, MD is a specialist with a practice address in Charleston, South Carolina, and NPI 1952394330, issued on Aug 31, 2005. Check the license (South Carolina 11024, as entered in NPPES) with the South Carolina board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Charles Ellyn
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- 11024 SC
Self-reported in NPPES; status is on the state search - Practice location
- 31 Smith St, Charleston, SC 29401
- Phone
- (843) 577-6506
- Enumerated
- Aug 31, 2005
- Record last updated
- Sep 26, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20130423000099); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 1981
- Entity
- Type 1 · individual
8 nearest specialist records → All 354 in South Carolina → Look up another NPI →
Also registered at 31 Smith St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Horry Kerrison, MDOphthalmology Physician1699706424
Verify John Charles Ellyn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Carolina board licenses this profession
Search for license 11024Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average specialist in 2024
814 Medicare Part D claims for 220 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Latanoprost383 claims
- Dorzolamide-Timolol125 claims
- Lumigan49 claims
- Timolol Maleate42 claims
- Dorzolamide Hcl30 claims
- Brimonidine Tartrate28 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.
John Charles Ellyn among 354 specialist records in South Carolina
John Charles Ellyn, MD is one of 354 specialist records with a practice address in South Carolina. 27% 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, 90% newer
- In a Medicare fileYes · 27% of these records are
- In the CMS Doctors and Clinicians fileYes · 16% of these records are
- Graduated1981 · median 1990 among the 57 with a school on file
- Record last updated2013 · 81% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in South Carolina
There are 354 specialist records in South Carolina.
All 354 in South Carolina → Every provider in Charleston → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Gearin Broderick, MDCharleston, SC 294011730116021
- Louis Costa, D.M.D., M.D.Charleston, SC 294011245297951
- Dana Heikes, M.D., F.A.C.S.Charleston, SC 294011134151061
- Alyssa LurieCharleston, SC 294011508424383
- Robert McDonald, MDCharleston, SC 294011821185752
- Claudia Welber, M.D.Charleston, SC 294011356513550
- Lon Doles, D.D.S.Charleston, SC 294051255491692
- Kerri Kolehma, MDN Charleston, SC 294051760587034
Common questions
What is John Charles Ellyn, MD's NPI number?
John Charles Ellyn, MD's National Provider Identifier (NPI) is 1952394330, issued on Aug 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Charles Ellyn, MD located?
The NPPES record lists a practice address at 31 Smith St, Charleston, SC, 29401. Phone: (843) 577-6506. Providers update this record themselves, so call before visiting.
How can I verify John Charles Ellyn, MD's license?
NPPES lists South Carolina license number 11024, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.
How much does John Charles Ellyn, MD prescribe under Medicare Part D?
In 2024, John Charles Ellyn, MD had 814 Medicare Part D claims for 220 beneficiaries; the average among specialist prescribers was 1,380. 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.