Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Diane Christy Streng, L.L.P.

Q: What is the NPI number for Diane Streng?

The National Provider Identifier (NPI) for Diane Streng is 1508917477, a Type 1 (individual) record in the CMS NPPES registry.

Counseling Psychologist in Grand Haven, MI · enumerated 2007.

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

National Provider Identifier

1508917477

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Registry record

Entity type Individual (Type 1)

Name Ms. Diane Christy Streng

Credential L.L.P.

Sex Female

Practice address 41 Washington Ave, Suite 370c, Grand Haven, MI, 49417

Phone (616) 847-1530

Fax (616) 847-1521

Enumeration date Jan 16, 2007

Last updated in NPPES Jul 23, 2025

Taxonomy & licenses

103TC1900X Counseling Psychologist Behavioral Health & Social Service Providers · License 6301007351 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Diane Streng practice?

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

What is the NPI number for Diane Streng?

The National Provider Identifier (NPI) for Diane Streng is 1508917477, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-23.