Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Madelyn Mary Riordan

Homemaker in Liberty Township, OH · enumerated 2024.

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

National Provider Identifier

1508695594

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Registry record

Entity type Individual (Type 1)

Name Madelyn Mary Riordan

Sex Female

Practice address Liberty Township, OH, 45044

Phone (513) 364-6183

Enumeration date Jul 29, 2024

Last updated in NPPES Jul 29, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

172A00000X Driver Other Service Providers Secondary

3747P1801X Personal Care Attendant Nursing Service Related Providers Secondary

385HR2060X Child Intellectual and/or Developmental Disabilities Respite Care Respite Care Facility Secondary

376J00000X Homemaker Nursing Service Related Providers Primary

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

What is the NPI number for Madelyn Riordan?

The National Provider Identifier (NPI) for Madelyn Riordan is 1508695594, a Type 1 (individual) record in the CMS NPPES registry.

Where does Madelyn Riordan practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-29.