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Provider Profile

Derek Mattern, LMSW

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At a glance

About Derek Mattern

Derek Mattern, LMSW is a clinical social worker practicing in Queensbury, NY. This provider record is associated with NPI 1285532937.

Factual summary compiled by Guide.md from public records; not written by this provider.

Specialty

Credentials & Licensing

NY licenceAs reported to the NPI registry
No. 126537As reported
NPINational Provider Identifier
1285532937Issued 2026

As reported to the NPI registry ↗

Common questions

What is Derek Mattern's specialty?

Derek Mattern is a clinical social worker in Queensbury, NY. That is the designation recorded for this NPI in the federal registry.

NPI registry

Where can I find Derek Mattern?

Derek Mattern is listed at 25 Willowbrook Rd, Queensbury, NY 12804. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How do I contact Derek Mattern?

The number on file is (518) 926-7100. Contact the office directly to confirm availability and scheduling.

NPI registry

What is the NPI for Derek Mattern?

Derek Mattern's National Provider Identifier is 1285532937. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.

NPI registry

Is Derek Mattern's profile verified?

Not yet. This profile is built from public federal data and has not been confirmed by Derek Mattern. If this is you, claiming it is free.

Guide.md

Guide.md listings do not constitute medical advice or an endorsement.

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