Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. William Donald Rehmann, LPC

Professional Counselor in Saginaw, MI · enumerated 2007.

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

National Provider Identifier

1598968919

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Registry record

Entity type Individual (Type 1)

Name Mr. William Donald Rehmann

Credential LPC

Sex Male

Practice address 710 N Michigan Ave, Saginaw, MI, 48602

Phone (989) 753-8446

Fax (989) 753-2582

Enumeration date Jun 6, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 6401003881 (MI) Primary

LPC · Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy. About the LPC credential

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

Is NPI 1598968919 active?

Yes, as of the latest NPPES snapshot, NPI 1598968919 is active (record last updated 2007-07-08).

How do I verify William Rehmann's NPI record?

Cross-check NPI 1598968919 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 2007-07-08.