Marc H. Neiberg, D.O.
Internal Medicine Physician · Wilmington, DE
Marc H. Neiberg, D.O. is an internal medicine physician with a practice address in Wilmington, Delaware, and NPI 1194819839, issued on Oct 3, 2006. Check the license on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Marc H. Neiberg
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- OS007368E PA
Self-reported in NPPES; status is on the state search - Practice location
- 1601 Kirkwood Hwy, Wilmington, DE 19805
- Phone
- (302) 994-2511
- Enumerated
- Oct 3, 2006
- Record last updated
- Apr 18, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20260108002049); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 600 in Delaware → Look up another NPI →
Also registered at 1601 Kirkwood Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marc H. Neiberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and DisciplineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
22 Medicare Part D claims, against an average of 3,176 among the 108,855 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.
Bills Medicare through one group practice
- Privia Medical Group, LLCCulpeper, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marc H. Neiberg among 600 internal medicine physician records in Delaware
Marc H. Neiberg, D.O. 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
- Graduated1998 · median 2008 among the 414 with a school on file
- Record last updated2016 · 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
- Ashlesha Chaughule, M.D.Wilmington, DE 198051528018702
- Manisha Dhuria, MDWilmington, DE 198051780634311
- Jarita Dihenkar, MDWilmington, DE 198051326098450
- Shilpa Garg, MDWilmington, DE 198051588613996
- Donald Hayes, MDWilmington, DE 198051417934589
- Cynthia Heldt, MDWilmington, DE 198051679550750
- Thomas Hilton, MDWilmington, DE 198051912983339
- Susan Keith, MDWilmington, DE 198051013968130
Common questions
What is Marc H. Neiberg, D.O.'s NPI number?
Marc H. Neiberg, D.O.'s National Provider Identifier (NPI) is 1194819839, issued on Oct 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marc H. Neiberg, D.O. located?
The NPPES record lists a practice address at 1601 Kirkwood Hwy, Wilmington, DE, 19805. Phone: (302) 994-2511. Providers update this record themselves, so call before visiting.
How can I verify Marc H. Neiberg, D.O.'s license?
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 Marc H. Neiberg, D.O. prescribe under Medicare Part D?
In 2024, Marc H. Neiberg, D.O. had 22 Medicare Part D claims; 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.