Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Ann Tonrey, MS, RDN, LDN

Registered Dietitian in Harrisburg, PA · enumerated 2017.

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

National Provider Identifier

1750816955

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Registry record

Entity type Individual (Type 1)

Name Mary Ann Tonrey

Credential MS, RDN, LDN

Sex Female

Practice address 607 South Dr Rm 339, Harrisburg, PA, 17120

Phone (717) 772-0759

Enumeration date Apr 25, 2017

Last updated in NPPES Apr 25, 2017

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License DN000080 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1750816955 active?

Yes, as of the latest NPPES snapshot, NPI 1750816955 is active (record last updated 2017-04-25).

How do I verify Mary Ann Tonrey's NPI record?

Cross-check NPI 1750816955 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-04-25.