THE NEMOURS FOUNDATION
NPI 1366594699
Clinic/Center - Multi-Specialty in Wilmington, DE
About The Nemours Foundation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THE NEMOURS FOUNDATION (NPI 1366594699) is a healthcare organization registered as a multi-specialty in Wilmington, Delaware and active in the NPI registry since January 2007. The organization maintains a secondary practice location in Wilmington and lists Mark Mumford, Evp, Coo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 15
Other Names 1
Secondary Practice Location 1
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
The Nemours Foundation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
526Medicare enrollment records show 526 clinicians reassign Medicare billing to The Nemours Foundation, which bills Medicare for the services they deliver. Of these, 203 practice at this address and 292 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 40
Nearest to this location (20)
See all 526Wilmington, DE 19803
Wilmington, DE 19803
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is The Nemours Foundation's NPI number?
The NPI number for The Nemours Foundation is 1366594699. It was assigned to this organization in the NPPES registry on January 17, 2007. The provider is also known as Nemours Children's Health Delaware.
Where is The Nemours Foundation located?
The Nemours Foundation is located at 1600 Rockland Rd, Wilmington, DE 19803. The listed phone number is (302) 651-4000.
What is The Nemours Foundation's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Multi-Specialty, with taxonomy code 261QM1300X.
Is The Nemours Foundation enrolled in Medicare?
Yes. The Nemours Foundation is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through The Nemours Foundation?
According to the CMS Revalidation Reassignment List (October 2026 release), 526 clinicians in 40 Medicare specialties reassign their Medicare billing to The Nemours Foundation. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Pediatric Medicine (117), Nurse Practitioner (71) and Anesthesiology (44). Of these, 203 practice at this address and 292 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does The Nemours Foundation accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and AmeriHealth Caritas Next and 3 other insurers list The Nemours Foundation as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for The Nemours Foundation was last updated on January 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# The Nemours Foundation · NPI 1366594699
Multi-Specialty organization in Wilmington, Delaware. Organization record, active in the CMS NPPES registry since January 17, 2007.
## Identity
- **NPI:** 1366594699 (Entity type: Organization)
- **Enumerated:** January 17, 2007
- **Primary specialty:** Clinic/Center - Multi-Specialty · taxonomy 261QM1300X
- **Also known as:** Nemours Children's Health Delaware (Other Name)
- **Organization subpart:** Yes (part of The Nemours Foundation)
- **Authorized official:** Mark Mumford, EVP, COO
## Practice location
- **Address:** 1600 ROCKLAND RD, Wilmington, DE 19803-3607
- **Phone:** (302) 651-4000 · **Fax:** (302) 651-4945
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 526 clinicians in 40 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Pediatric Medicine (117), Nurse Practitioner (71), Anesthesiology (44); 203 practice at this address and 292 within 10 miles; [full list](https://npiprofile.com/npi/1366594699/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 21, 2026
- **Other identifiers:** Medicaid 0000213002 (DE); Medicaid 0000544302 (DE)
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Source: [NPI Profile](https://npiprofile.com/npi/1366594699) · Data from the CMS NPPES public registry.