NPI Portal NPI Lookup & Verification

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

Dr. Stephen T Leidenheimer, D.D.S.

General Practice Dentistry in Elyria, OH · enumerated 2007.

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

National Provider Identifier

1194859702

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Registry record

Entity type Individual (Type 1)
Name Dr. Stephen T Leidenheimer
Credential D.D.S.
Sex Male
Practice address Elyria, OH, 44035
Fax (440) 654-2778
Enumeration date Mar 15, 2007
Last updated in NPPES May 31, 2026

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

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 30020876 (OH) Primary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier Type State Issuer
2093907 Medicaid OH -

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

What is the NPI number for Stephen Leidenheimer?
The National Provider Identifier (NPI) for Stephen Leidenheimer is 1194859702, a Type 1 (individual) record in the CMS NPPES registry.
Where does Stephen Leidenheimer practice?
The practice location on file with NPPES is in Elyria, OH. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-31.