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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary M Relich-Dudas, CRNP

Adult Health Nurse Practitioner in Washington, PA · enumerated 2006 · practices at Casr MD'S Ltd.

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

National Provider Identifier

1912943358

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Registry record

Entity type Individual (Type 1)
Name Mary M Relich-Dudas
Credential CRNP
Sex Female
Practice address 125 North Franklin Drive, Suite 1, Washington, PA, 15301
Phone (724) 225-6500
Fax (724) 225-8188
Enumeration date Jun 22, 2006
Last updated in NPPES Jan 9, 2019

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License TP003346M (PA) Primary

Other identifiers

Identifier Type State Issuer
365826 Other PA KEYSTONE WEST PROVIDER NO

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.

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Frequently asked questions

How do I verify Mary Relich-Dudas's NPI record?
Cross-check NPI 1912943358 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1912943358 active?
Yes, as of the latest NPPES snapshot, NPI 1912943358 is active (record last updated 2019-01-09).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-01-09.