Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Cynthia Ann Madden, N.P.

Pediatric Nurse Practitioner in Delmar, DE · enumerated 2007.

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

National Provider Identifier

1336296417

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Registry record

Entity type Individual (Type 1)

Name Ms. Cynthia Ann Madden

Credential N.P.

Sex Female

Practice address 200 N 8th St, Delmar High School Wellness Center, Delmar, DE, 19940

Phone (302) 846-0303

Fax (302) 846-0502

Enumeration date Jan 4, 2007

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License LG-0000235 (DE) Secondary

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License LJ-0000127 (DE) Secondary

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R072822 (MD) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

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 Cynthia Madden practice?

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

What is the NPI number for Cynthia Madden?

The National Provider Identifier (NPI) for Cynthia Madden is 1336296417, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Janet Holloway School Registered Nurse · Delmar, DE NPI 1598809329 Rose Murrell School Registered Nurse · Delmar, DE NPI 1407990237 State of Delaware Local Education Agency (LEA) · Delmar, DE NPI 1922142892 Donna Bartrug Speech-Language Pathologist · Delmar, DE NPI 1114185741 Kelly Dryden School Registered Nurse · Delmar, DE NPI 1174776280 Nanticoke Wellness Seaford Student Health Clinic/Center · Delmar, DE NPI 1356629984 Amanda Keaney Clinical Social Worker · Delmar, DE NPI 1669720280 Courtney Gum Clinical Social Worker · Delmar, DE NPI 1821741059

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.