NPI Portal NPI Lookup & Verification

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

Mary L. Ritz, D.D.S.

Dentist in Torrance, PA · enumerated 2006.

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

National Provider Identifier

1568477891

Verified

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Registry record

Entity type Individual (Type 1)
Name Mary L. Ritz
Credential D.D.S.
Sex Female
Practice address Torrance, PA, 15779
Phone (724) 459-4401
Fax (724) 459-4465
Enumeration date Jul 29, 2006
Last updated in NPPES Mar 7, 2023

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

Taxonomy & licenses

122300000X Dentist Dental Providers · License DS025166L (PA) Primary
122300000X Dentist Dental Providers · License 0401008391 (VA) Secondary
122300000X Dentist Dental Providers · License 10832 (INACTIVE) (MD) Secondary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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 Ritz practice?
The practice location on file with NPPES is in Torrance, PA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mary Ritz?
The National Provider Identifier (NPI) for Mary Ritz is 1568477891, a Type 1 (individual) record in the CMS NPPES registry.

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