NPI Portal NPI Lookup & Verification

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

Ms. Diana Lynn Clark, LMSW

Clinical Social Worker in Utica, MI · enumerated 2007.

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

National Provider Identifier

1730370727

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Registry record

Entity type Individual (Type 1)
Name Ms. Diana Lynn Clark
Credential LMSW
Sex Female
Practice address Utica, MI, 48317
Phone (586) 413-3431
Enumeration date Aug 6, 2007
Last updated in NPPES Aug 6, 2007

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 6801085702 (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

Is NPI 1730370727 active?
Yes, as of the latest NPPES snapshot, NPI 1730370727 is active (record last updated 2007-08-06).
How do I verify Diana Clark's NPI record?
Cross-check NPI 1730370727 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-08-06.