Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Catherine Niederman, RN

Psychiatric/Mental Health Nurse Practitioner in Riverside, RI · enumerated 2024.

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

National Provider Identifier

1992538789

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Registry record

Entity type Individual (Type 1)

Name Mary Catherine Niederman

Credential RN

Sex Female

Practice address 1953 Village Grn S Apt D, Riverside, RI, 02915

Phone (401) 345-4506

Enumeration date Aug 26, 2024

Last updated in NPPES Oct 28, 2025

Taxonomy & licenses

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN04860 (RI) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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 Mary Niederman practice?

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

What is the NPI number for Mary Niederman?

The National Provider Identifier (NPI) for Mary Niederman is 1992538789, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-28.