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

Mr. John Joseph Hasenauer, RN

Registered Nurse in Toledo, OH · enumerated 2018.

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

National Provider Identifier

1508355363

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Registry record

Entity type Individual (Type 1)

Name Mr. John Joseph Hasenauer

Credential RN

Sex Male

Practice address Toledo, OH, 43623

Phone (419) 740-5709

Enumeration date May 8, 2018

Last updated in NPPES Jun 21, 2021

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

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 166589 (OH) Secondary

163W00000X Registered Nurse Nursing Service Providers · License 180735 (OH) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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 John Hasenauer practice?

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

What is the NPI number for John Hasenauer?

The National Provider Identifier (NPI) for John Hasenauer is 1508355363, 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 2021-06-21.