What is The Nemours Foundation's NPI number?

The Nemours Foundation's National Provider Identifier (NPI) is 1538903570, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What type of organization is The Nemours Foundation?

The Nemours Foundation is classified in the NPPES registry as Pediatrics Physician (Allopathic & Osteopathic Physicians).

Where is The Nemours Foundation located?

The Nemours Foundation's practice location on file with NPPES is 511 Sussex Ave, Seaford, DE 19973-2041.

What is The Nemours Foundation's phone number?

The practice phone number listed in the NPPES registry for The Nemours Foundation is (302) 429-4000.

Who is the authorized official for The Nemours Foundation?

The authorized official listed on The Nemours Foundation's NPPES record is Mark Mumford, Executive Vp, Coo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.

Is The Nemours Foundation's NPI active?

Yes — The Nemours Foundation's NPI (1538903570) is active in the NPPES registry as of the last update on 2026-01-21.

OrganizationActive

The Nemours Foundation

NPI 1538903570 · Pediatrics Physician · Seaford, DE

The Nemours Foundation is a Pediatrics Physician organization in Seaford, DE (NPI 1538903570).

Provider details

NPI number: 1538903570
Entity type: Organization
Primary specialty: Pediatrics PhysicianAllopathic & Osteopathic Physicians
Organization subpart: No
Authorized official: Mark Mumford, Executive Vp, Coo(302) 651-6890

Practice location

511 Sussex Ave

Seaford, DE 19973-2041

Phone: (302) 429-4000

Street-level locationGet directions

More DE providers

Mailing address

2200 Concord Pike Fl 8

Wilmington, DE 19803-2978

Specialties & taxonomies

Pediatrics PhysicianPrimary208000000X
Allopathic & Osteopathic Physicians

Other names (DBA / former)

Other name: West Seaford Elementary School-Based Wellness Center

Profile Score

Established profile(57/100 index)

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

Registry tenure38% of score
2 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: 2024-06-24
Last updated: 2026-01-21
Certified: 2026-01-21

Frequently asked questions

What is The Nemours Foundation's NPI number?: The Nemours Foundation's National Provider Identifier (NPI) is 1538903570, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What type of organization is The Nemours Foundation?: The Nemours Foundation is classified in the NPPES registry as Pediatrics Physician (Allopathic & Osteopathic Physicians).
Where is The Nemours Foundation located?: The Nemours Foundation's practice location on file with NPPES is 511 Sussex Ave, Seaford, DE 19973-2041.
What is The Nemours Foundation's phone number?: The practice phone number listed in the NPPES registry for The Nemours Foundation is (302) 429-4000.
Who is the authorized official for The Nemours Foundation?: The authorized official listed on The Nemours Foundation's NPPES record is Mark Mumford, Executive Vp, Coo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
Is The Nemours Foundation's NPI active?: Yes — The Nemours Foundation's NPI (1538903570) is active in the NPPES registry as of the last update on 2026-01-21.

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

Other names (DBA / former)

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Other names (DBA / former)

Profile Score

Frequently asked questions