Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Diane Casalaina
Social Worker in New Haven, CT · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1659588499
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Registry record
Entity type Individual (Type 1)
Name Diane Casalaina
Sex Female
Practice address 62 Grant St, New Haven, CT, 06519
Phone (203) 503-3350
Enumeration date May 17, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
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.
Frequently asked questions
Is NPI 1659588499 active?
Yes, as of the latest NPPES snapshot, NPI 1659588499 is active (record last updated 2007-07-08).
How do I verify Diane Casalaina's NPI record?
Cross-check NPI 1659588499 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.