Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Isabel Nadal
School Social Worker in Chelsea, MA · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1427728559
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Registry record
Entity type Individual (Type 1)
Name Isabel Nadal
Sex Female
Practice address 299 Everett Ave, Chelsea, MA, 02150
Phone (617) 466-5079
Enumeration date Sep 20, 2021
Last updated in NPPES Sep 20, 2021
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 1427728559 active?
Yes, as of the latest NPPES snapshot, NPI 1427728559 is active (record last updated 2021-09-20).
How do I verify Isabel Nadal's NPI record?
Cross-check NPI 1427728559 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 2021-09-20.