NPPES file of Aug 9, 2026

Madeline Esther Marcus, MD

Pediatrics Physician · Seaford, DE

Madeline Esther Marcus, MD is a pediatrics physician with a practice address in Seaford, Delaware, and NPI 1881616647, issued on Jul 24, 2006. Check the license (Delaware C10011062, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1881616647
Name
Madeline Esther Marcus
Credential
MD
Primary taxonomy
Pediatrics Physician 208000000X
License numbers
C10011062 DE
G079237 CA
Self-reported in NPPES; status is on the state search
Practice location
801 Middleford RD, Seaford, DE 19973
Phone
(302) 629-6611
Enumerated
Jul 24, 2006
Record last updated
Sep 7, 2018 (not updated in 8 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 801 Middleford RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Asmaa Azab, MDPediatrics Physician1003292897
  2. Maushumi Barooah, MDInternal Medicine Physician1346406097
  3. Victoria Bauer, FNP-BCNurse Practitioner1679279749
  4. Louis Berges, MDAnesthesiology Physician1417952987
  5. Michael Blankenship, RRTRegistered Respiratory Therapist1407748726
  6. Michael Bush, PA-CPhysician Assistant1053616409

Verify Madeline Esther Marcus in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
    Search for license C10011062
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Delaware license search

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5 pediatrics physician records list a practice address in Seaford

They are 5 of the 442 NPPES records with a practice address in Seaford, and 290 pediatrics physician records in Delaware. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other pediatrics physician records in Delaware

  1. Elsayed Abdelsalam, MDCamden, DE1679714935
  2. Rebecca Achterhof, MDNewark, DE1477500742
  3. Ashley Adams, MDDover Afb, DE1023307865
  4. Nicole AdlerBear, DE1841985504
  5. Taqdees Afreen, M.D.Milford, DE1184903627
  6. Valerie Agbeko, M.DDover, DE1720242522
  7. Brad Albertson, M.D.Wilmington, DE1972983716
  8. Colleen Allorto, DOMilford, DE1740307297
  9. Joanne Amos, DO, PA-CWilmington, DE1760731970
  10. Amy Anzilotti, MDWilmington, DE1194927053

Common questions

What is Madeline Esther Marcus, MD's NPI number?

Madeline Esther Marcus, MD's National Provider Identifier (NPI) is 1881616647, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Madeline Esther Marcus, MD located?

The NPPES record lists a practice address at 801 Middleford RD, Seaford, DE, 19973. Phone: (302) 629-6611. Providers update this record themselves, so call before visiting.

How can I verify Madeline Esther Marcus, MD's license?

NPPES lists Delaware license number C10011062, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.