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

Dr. Crystal L Oswalt, PH.D.

Clinical Psychologist in Celina, OH · enumerated 2007 · practices at Crystal L. Oswalt, Ph.D., Counseling & Consulting Services Inc..

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

National Provider Identifier

1255498465

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Registry record

Entity type Individual (Type 1)
Name Dr. Crystal L Oswalt
Credential PH.D.
Sex Female
Practice address Celina, OH, 45822
Phone (419) 586-3900
Fax (419) 586-3338
Enumeration date Jan 3, 2007
Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 3620 (OH) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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 Crystal Oswalt practice?
The practice location on file with NPPES is in Celina, OH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Crystal Oswalt?
The National Provider Identifier (NPI) for Crystal Oswalt is 1255498465, 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 2007-07-08.