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

Gertrud Irmgard Classen-Miller, LCSW-C

Clinical Social Worker in North Potomac, MD · enumerated 2006 · practices at Classen-Miller & Associates LLC.

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

National Provider Identifier

1942257142

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Registry record

Entity type Individual (Type 1)
Name Gertrud Irmgard Classen-Miller
Credential LCSW-C
Sex Female
Practice address North Potomac, MD, 20878
Phone (301) 977-0824
Fax (240) 597-0794
Enumeration date May 31, 2006
Last updated in NPPES May 20, 2014

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 07197 (MD) 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 Gertrud Classen-Miller's NPI record?
Cross-check NPI 1942257142 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1942257142 active?
Yes, as of the latest NPPES snapshot, NPI 1942257142 is active (record last updated 2014-05-20).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-05-20.