Ronald L. Lewis, M.D.
Cardiovascular Disease Physician · Newark, DE
Ronald L. Lewis, M.D. is a cardiovascular disease physician with a practice address in Newark, Delaware, and NPI 1790751741, issued on Feb 28, 2006. Check the license (Delaware C20003088, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Ronald L. Lewis
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- C20003088 DE
Self-reported in NPPES; status is on the state search - Practice location
- 252 Chapman RD, Newark, DE 19702
- Phone
- (302) 623-1929
- Enumerated
- Feb 28, 2006
- Record last updated
- Nov 8, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (302) 366-1075
- Medicaid ID
- 0000313403 DE
- Medicare enrollment
- Enrolled (PECOS I20051116000452); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 1981
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 102 in Delaware → Look up another NPI →
Also registered at 252 Chapman RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ruchira Glaser, M.D.Cardiovascular Disease Physician1770762254
- Stephanie Hart, NP-CFamily Nurse Practitioner1710267174
- Annie Ingram, NP-CAdult Health Nurse Practitioner1548540503
- Stephanie Klair, ANPNurse Practitioner1750797635
- Ajith Kumar, M.D.Cardiovascular Disease Physician1386611267
- Michael Stillabower, M.D.Cardiovascular Disease Physician1548237472
Verify Ronald L. Lewis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
Search for license C20003088Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% more Medicare Part D claims than the average cardiovascular disease physician in 2024
5,758 Medicare Part D claims for 792 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Atorvastatin Calcium589 claims
- Metoprolol Succinate498 claims
- Rosuvastatin Calcium481 claims
- Eliquis369 claims
- Losartan Potassium346 claims
- Amlodipine Besylate297 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: $78.09
4 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 16,686 providers of this specialty with any payment received $3,819.56 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 2 group practices
- Christiana Care Health Services IncMiddletown, DE
- Christiana Care Pennsylvania IncWest Grove, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ronald L. Lewis among 102 cardiovascular disease physician records in Delaware
Ronald L. Lewis, M.D. is one of 102 cardiovascular disease physician records with a practice address in Delaware. 85% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 36% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated1981 · median 1993 among the 80 with a school on file
- Record last updated2016 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Delaware
There are 102 cardiovascular disease physician records in Delaware.
All 102 in Delaware → Every provider in Newark → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Piamsook Angkeow, M.D.Wilmington, DE 197021568439461
- Christopher Bowens, M.D.Newark, DE 197021487657102
- Kevin Boyle, MDWilmington, DE 197021487620571
- Ruchira Glaser, M.D.Newark, DE 197021770762254
- Edward Goldenberg, M.D.Newark, DE 197021770559650
- James Hopkins, M.D.Newark, DE 197021912900630
- Robin Horn, M.D.Newark, DE 197021609842608
- Roger Kerzner, MDNewark, DE 197021255385589
Common questions
What is Ronald L. Lewis, M.D.'s NPI number?
Ronald L. Lewis, M.D.'s National Provider Identifier (NPI) is 1790751741, issued on Feb 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ronald L. Lewis, M.D. located?
The NPPES record lists a practice address at 252 Chapman RD, Newark, DE, 19702. Phone: (302) 623-1929. Providers update this record themselves, so call before visiting.
How can I verify Ronald L. Lewis, M.D.'s license?
NPPES lists Delaware license number C20003088, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ronald L. Lewis, M.D. prescribe under Medicare Part D?
In 2024, Ronald L. Lewis, M.D. had 5,758 Medicare Part D claims for 792 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.