Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Madelynn Vassallo, MSW,MPH

Social Worker in New London, NH · enumerated 2018.

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

National Provider Identifier

1578046496

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Registry record

Entity type Individual (Type 1)

Name Madelynn Vassallo

Credential MSW,MPH

Sex Female

Practice address New London, NH, 03257

Phone (603) 526-5425

Enumeration date Sep 7, 2018

Last updated in NPPES Jan 17, 2020

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 1022659 (MA) Secondary

104100000X Social Worker Behavioral Health & Social Service Providers · License 2267 (NH) 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.

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Frequently asked questions

How do I verify Madelynn Vassallo's NPI record?

Cross-check NPI 1578046496 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1578046496 active?

Yes, as of the latest NPPES snapshot, NPI 1578046496 is active (record last updated 2020-01-17).

Other providers at this practice address

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Jan Idzikowski Surgical Physician Assistant · New London, NH NPI 1629074505 Donald Eberly Surgery Physician · New London, NH NPI 1922059427 Sean Bears Surgery Physician · New London, NH NPI 1013968486 Garrett Bomba Emergency Medicine Physician · New London, NH NPI 1881638955 Andrew Best Emergency Medicine Physician · New London, NH NPI 1619913118 Maria Martins General Practice Physician · New London, NH NPI 1952339251 Amy Schneider Family Medicine Physician · New London, NH NPI 1952331373 Carrie Kluger Pediatrics Physician · New London, NH NPI 1942232731

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-17.