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

Mary Claire Weiler, PHD, RD, LD

Registered Dietitian in Lancaster, OH · enumerated 2016.

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

National Provider Identifier

1871945063

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Registry record

Entity type Individual (Type 1)
Name Mary Claire Weiler
Credential PHD, RD, LD
Sex Female
Practice address Lancaster, OH, 43130
Phone (740) 687-8079
Enumeration date Jul 12, 2016
Last updated in NPPES Jul 12, 2016

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

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 7938 (OH) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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.

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Frequently asked questions

Where does Mary Weiler practice?
The practice location on file with NPPES is in Lancaster, OH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mary Weiler?
The National Provider Identifier (NPI) for Mary Weiler is 1871945063, 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 2016-07-12.