Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David L Chiarella, PH.D.

Clinical Psychologist in Youngstown, OH · enumerated 2006.

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

National Provider Identifier

1689642522

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Registry record

Entity type Individual (Type 1)

Name Dr. David L Chiarella

Credential PH.D.

Sex Male

Practice address 500 Gypsy Ln, Youngstown, OH, 44504

Phone (330) 884-3167

Fax (330) 884-0636

Enumeration date Mar 8, 2006

Last updated in NPPES Mar 16, 2020

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 4187 (OH) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
0751977	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 David Chiarella?

The National Provider Identifier (NPI) for David Chiarella is 1689642522, a Type 1 (individual) record in the CMS NPPES registry.

Where does David Chiarella practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-16.