Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Madeline Esther Marcus, MD

Individual provider Pediatric Hematology & Oncology Physician · NPI 1881616647

Madeline Esther Marcus, MD is a Pediatric Hematology & Oncology Physician in Seaford, Delaware. Licensed in California and Delaware. Registered with an NPI since 2006.

Licensed in
CA, DE
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

801 Middleford Rd
Seaford, DE 19973-3636
Phone: (302) 629-6611
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence G079237 (CA)
Pediatric Hematology & Oncology Physician Taxonomy 2080P0207X · Licence G079237 (CA)
Hospitalist Physician Taxonomy 208M00000X · Licence C10011062 (DE)

Record details

NPI number1881616647
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 24, 2006
Last updated in NPPESSeptember 7, 2018