Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David Bonanno, PSYD

Clinical Psychologist in Old Saybrook, CT · enumerated 2008.

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

National Provider Identifier

1780843540

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Registry record

Entity type Individual (Type 1)

Name David Bonanno

Credential PSYD

Sex Male

Practice address 20 Research Pkwy, Suite C, Old Saybrook, CT, 06475

Phone (800) 370-3651

Fax (860) 510-0030

Enumeration date Jun 6, 2008

Last updated in NPPES Jun 6, 2008

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License CT002860 (CT) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for David Bonanno?

The National Provider Identifier (NPI) for David Bonanno is 1780843540, a Type 1 (individual) record in the CMS NPPES registry.

Where does David Bonanno practice?

The practice location on file with NPPES is in Old Saybrook, CT. 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 2008-06-06.