Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kathryn Joan Hollett

Family Medicine Physician in Gloucester, MA · enumerated 2005.

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

National Provider Identifier

1619965654

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Registry record

Entity type Individual (Type 1)

Name Kathryn Joan Hollett

Sex Female

Practice address Lahey Health Primary Care, Gloucester, 298 Washington Street, Gloucester, MA, 01930

Phone (978) 283-2726

Fax (978) 283-0840

Enumeration date Oct 13, 2005

Last updated in NPPES Jul 30, 2018

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 79788 (MA) Primary

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 Kathryn Hollett?

The National Provider Identifier (NPI) for Kathryn Hollett is 1619965654, a Type 1 (individual) record in the CMS NPPES registry.

Where does Kathryn Hollett practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-07-30.