Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Nelson R. Santos, MD

General Practice Physician in Wilmington, DE · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1831280171

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Nelson R. Santos

Credential MD

Sex Male

Practice address Nemours Pediatrics St. Francis, 7th & Clayton Street Suite 400, Wilmington, DE, 19805

Phone (302) 421-9700

Fax (302) 421-9743

Enumeration date Sep 28, 2006

Last updated in NPPES Sep 10, 2011

Taxonomy & licenses

207PP0204X Pediatric Emergency Medicine (Emergency Medicine) Physician Allopathic & Osteopathic Physicians · License C10005644 (DE) Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License C10005644 (DE) Secondary

2080P0204X Pediatric Emergency Medicine (Pediatrics) Physician Allopathic & Osteopathic Physicians · License C10005644 (DE) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License C10005644 (DE) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
7969201	Medicaid	NJ	-
001756573	Medicaid	PA	-
3939022	Medicaid	MD	-
910139000	Medicaid	FL	-
02182432	Medicaid	NY	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Nelson Santos practice?

The practice location on file with NPPES is in Wilmington, DE. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Nelson Santos?

The National Provider Identifier (NPI) for Nelson Santos is 1831280171, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Vilma Davis Nurse Practitioner · Wilmington, DE NPI 1982795225 Aguida Atkinson General Practice Physician · Wilmington, DE NPI 1407947880

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-10.