Clarence O'Neil Ellis, MD
Internal Medicine Physician · Charlotte, NC
Clarence O'Neil Ellis, MD is an internal medicine physician with a practice address in Charlotte, North Carolina, and NPI 1376505305, issued on Apr 5, 2006. Check the license (North Carolina 27910, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Clarence O'Neil Ellis
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 27910 NC
Self-reported in NPPES; status is on the state search - Practice location
- 1100 Blythe Blvd, Charlotte, NC 28203
- Phone
- (704) 355-9047
- Enumerated
- Apr 5, 2006
- Record last updated
- Feb 17, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicaid IDs
- 8930620 NC
N27910 SC - Medicare enrollment
- Enrolled (PECOS I20110817000525); may accept Medicare assignment
- Medical or professional school
- University Of North Carolina At Chapel Hill School Of Medicine, 1980
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,056 in North Carolina → Look up another NPI →
Also registered at 1100 Blythe Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Clarence O'Neil Ellis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 27910Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average internal medicine physician in 2024
7,186 Medicare Part D claims for 438 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 91 claims were for opioids.
Most prescribed
- Amlodipine Besylate669 claims
- Atorvastatin Calcium363 claims
- Losartan Potassium337 claims
- Hydrochlorothiazide259 claims
- Carvedilol190 claims
- Metformin Hcl Er179 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.
Industry payments in 2024: $332.85
15 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Amity Medical Group IncCharlotte, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Clarence O'Neil Ellis among 4,056 internal medicine physician records in North Carolina
Clarence O'Neil Ellis, MD is one of 4,056 internal medicine physician records with a practice address in North Carolina. 82% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 52% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1980 · median 2004 among the 2,706 with a school on file
- Record last updated2012 · 48% 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 North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
536 internal medicine physician records list a practice address in Charlotte
They are 536 of the 23,603 NPPES records with a practice address in Charlotte, and 4,056 internal medicine physician records in North Carolina.
All 4,056 in North Carolina → Every provider in Charlotte → Internal Medicine Physician nationwide →
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Common questions
What is Clarence O'Neil Ellis, MD's NPI number?
Clarence O'Neil Ellis, MD's National Provider Identifier (NPI) is 1376505305, issued on Apr 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Clarence O'Neil Ellis, MD located?
The NPPES record lists a practice address at 1100 Blythe Blvd, Charlotte, NC, 28203. Phone: (704) 355-9047. Providers update this record themselves, so call before visiting.
How can I verify Clarence O'Neil Ellis, MD's license?
NPPES lists North Carolina license number 27910, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Clarence O'Neil Ellis, MD prescribe under Medicare Part D?
In 2024, Clarence O'Neil Ellis, MD had 7,186 Medicare Part D claims for 438 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.