Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Melissa Olsen, BSW

Social Worker in New Haven, MI · enumerated 2006 · practices at Downriver Community Services, Inc..

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

National Provider Identifier

1154428522

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Registry record

Entity type Individual (Type 1)

Name Melissa Olsen

Credential BSW

Sex Female

Practice address 58144 Gratiot Avenue, New Haven, MI, 48048

Phone (810) 794-4982

Fax (810) 794-4407

Enumeration date Sep 20, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 6802078226 (MI) 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

What is the NPI number for Melissa Olsen?

The National Provider Identifier (NPI) for Melissa Olsen is 1154428522, a Type 1 (individual) record in the CMS NPPES registry.

Where does Melissa Olsen practice?

The practice location on file with NPPES is in New Haven, MI. 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 2007-07-08.