What is Madeline Marcus's NPI number?

Madeline Marcus's National Provider Identifier (NPI) is 1881616647, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Madeline Marcus's specialty?

Madeline Marcus is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).

Where is Madeline Marcus located?

Madeline Marcus's practice location on file with NPPES is 801 Middleford Rd, Seaford, DE 19973-3636.

What is Madeline Marcus's phone number?

The practice phone number listed in the NPPES registry for Madeline Marcus is (302) 629-6611.

Is Madeline Marcus's NPI active?

Yes — Madeline Marcus's NPI (1881616647) is active in the NPPES registry as of the last update on 2018-09-07.

IndividualActive

Madeline Marcus, MD

NPI 1881616647 · Pediatrics Physician · Seaford, DE

Madeline Marcus, MD is a Pediatrics Physician provider in Seaford, DE (NPI 1881616647).

Provider details

NPI number: 1881616647
Entity type: Individual
Primary specialty: Pediatrics PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Female
Sole proprietor: No
License: G079237 (CA)

Practice location

801 Middleford Rd

Seaford, DE 19973-3636

Phone: (302) 629-6611

Street-level locationGet directions

More DE providers

Mailing address

1515 Springfield Dr

Chico, CA 95928-5995

Specialties & taxonomies

Pediatrics PhysicianPrimary208000000XLicense G079237 (CA)
Allopathic & Osteopathic Physicians
Pediatric Hematology & Oncology Physician2080P0207XLicense G079237 (CA)
Allopathic & Osteopathic Physicians
Hospitalist Physician208M00000XLicense C10011062 (DE)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Enumerated: 2006-07-24
Last updated: 2018-09-07

Frequently asked questions

What is Madeline Marcus's NPI number?: Madeline Marcus's National Provider Identifier (NPI) is 1881616647, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Madeline Marcus's specialty?: Madeline Marcus is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
Where is Madeline Marcus located?: Madeline Marcus's practice location on file with NPPES is 801 Middleford Rd, Seaford, DE 19973-3636.
What is Madeline Marcus's phone number?: The practice phone number listed in the NPPES registry for Madeline Marcus is (302) 629-6611.
Is Madeline Marcus's NPI active?: Yes — Madeline Marcus's NPI (1881616647) is active in the NPPES registry as of the last update on 2018-09-07.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions