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

Dr. Rachel Hummel-Sass, PSY.D.

Clinical Child & Adolescent Psychologist in Tiffin, OH · enumerated 2015.

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

National Provider Identifier

1003295627

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Registry record

Entity type Individual (Type 1)
Name Dr. Rachel Hummel-Sass
Credential PSY.D.
Sex Female
Practice address Tiffin, OH, 44883
Enumeration date May 28, 2015
Last updated in NPPES Oct 12, 2021

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

Taxonomy & licenses

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License 7295 (OH) Primary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD 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 Rachel Hummel-Sass practice?
The practice location on file with NPPES is in Tiffin, OH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Rachel Hummel-Sass?
The National Provider Identifier (NPI) for Rachel Hummel-Sass is 1003295627, 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 2021-10-12.