Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Janette P Marnik, LDN

Registered Dietitian in Beaver, PA · enumerated 2023 · practices at Cornerstone Wellness Center Inc.

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

National Provider Identifier

1922709849

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Registry record

Entity type Individual (Type 1)

Name Janette P Marnik

Credential LDN

Sex Female

Practice address 265 3rd St Fl 2, Beaver, PA, 15009

Phone (330) 256-0533

Fax (330) 595-4727

Enumeration date Mar 16, 2023

Last updated in NPPES Mar 16, 2023

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License DN003054 (PA) 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.

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Frequently asked questions

Where does Janette Marnik practice?

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

What is the NPI number for Janette Marnik?

The National Provider Identifier (NPI) for Janette Marnik is 1922709849, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-16.