Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Madison P Altermatt, OTR/L

Occupational Therapist in Bridgeport, CT · enumerated 2018.

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

National Provider Identifier

1366911588

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Registry record

Entity type Individual (Type 1)

Name Madison P Altermatt

Credential OTR/L

Sex Female

Practice address 4200 Park Ave, Bridgeport, CT, 06604

Phone (203) 365-6443

Enumeration date Nov 16, 2018

Last updated in NPPES Feb 24, 2021

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers 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 Madison Altermatt?

The National Provider Identifier (NPI) for Madison Altermatt is 1366911588, a Type 1 (individual) record in the CMS NPPES registry.

Where does Madison Altermatt practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-24.