Stuart Felzer, MD
Internal Medicine Physician · Wilmington, DE
Stuart Felzer, MD is an internal medicine physician with a practice address in Wilmington, Delaware, and NPI 1508804402, issued on Jun 3, 2006. Check the license (Delaware C10003025, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Stuart Felzer
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- C10003025 DE
Self-reported in NPPES; status is on the state search - Practice location
- 1941 Limestone RD, Wilmington, DE 19808
- Phone
- (302) 633-1442
- Enumerated
- Jun 3, 2006
- Record last updated
- Oct 8, 2024
- Fax
- (302) 633-4424
- Medicaid ID
- 0000221001 DE
- Medicare enrollment
- Enrolled (PECOS I20110315001014); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 1982
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 600 in Delaware → Look up another NPI →
Also registered at 1941 Limestone RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth AdamsPhysician Assistant1598610941
- Linda Bartolo, APRNGerontology Nurse Practitioner1891868527
- Joseph Belgrade, M.D.Surgery Physician1144285701
- Richard Bonder, M.D.Dermatology Physician1932105194
- Maryann Connor, DOFamily Medicine Physician1912960428
- Michael Conway, M.D.Surgery Physician1881705309
Verify Stuart Felzer 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 C10003025Check 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
7,336 Medicare Part D claims for 353 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 293 claims were for opioids.
Most prescribed
- Levothyroxine Sodium349 claims
- Amlodipine Besylate318 claims
- Atorvastatin Calcium309 claims
- Metoprolol Succinate286 claims
- Rosuvastatin Calcium229 claims
- Losartan Potassium227 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: $744.79
39 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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 2 group practices
- Delaware Medical Group, LLCWilmington, DE
- Fairway Physical Therapy LLCPalm Beach Gardens, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stuart Felzer among 600 internal medicine physician records in Delaware
Stuart Felzer, MD is one of 600 internal medicine physician records with a practice address in Delaware. 83% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 68% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1982 · median 2008 among the 414 with a school on file
- Record last updated2024 · 49% 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 Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
107 internal medicine physician records list a practice address in Wilmington
They are 107 of the 6,291 NPPES records with a practice address in Wilmington, and 600 internal medicine physician records in Delaware.
All 600 in Delaware → Every provider in Wilmington → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mart Amick, MDWilmington, DE 198081942209143
- Franklin Ampadu, M.D.Wilmington, DE 198081245236843
- James Damour, M.D.Wilmington, DE 198081700884061
- Robert Kopecki, DOWilmington, DE 198081326047796
- David Maged, MDWilmington, DE 198081124028808
- Victoria Mawn, MDWilmington, DE 198081932108305
- Andrew Myers, MDWilmington, DE 198081477566446
- William Nottingham, MDWilmington, DE 198081649213836
Common questions
What is Stuart Felzer, MD's NPI number?
Stuart Felzer, MD's National Provider Identifier (NPI) is 1508804402, issued on Jun 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stuart Felzer, MD located?
The NPPES record lists a practice address at 1941 Limestone RD, Wilmington, DE, 19808. Phone: (302) 633-1442. Providers update this record themselves, so call before visiting.
How can I verify Stuart Felzer, MD's license?
NPPES lists Delaware license number C10003025, 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 Stuart Felzer, MD prescribe under Medicare Part D?
In 2024, Stuart Felzer, MD had 7,336 Medicare Part D claims for 353 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.