Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Willett & Associates

Q: What is the NPI number for Willett & Associates?

The NPI for Willett & Associates is 1619491198, a Type 2 (organization) record in the CMS NPPES registry.

Addiction Medicine (Internal Medicine) Physician in Lynn, MA · enumerated 2017 · authorized official Jason Willett, Ceo.

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

National Provider Identifier

1619491198

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Registry record

Entity type Organization (Type 2)

Legal business name Willett & Associates

Practice address 22 Adams St Ste 1, Lynn, MA, 01902

Phone (978) 221-8652

Enumeration date Jul 27, 2017

Last updated in NPPES Nov 17, 2017

Taxonomy & classification

207RA0401X Addiction Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Jason Willett

Title Ceo

Phone (978) 221-8652

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 Willett & Associates?

The NPI for Willett & Associates is 1619491198, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Willett & Associates?

NPPES lists Jason Willett (Ceo) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-11-17.