Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Zenn Timmer, LMSW
Clinical Social Worker in Grant, MI · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1407312739
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Registry record
Entity type Individual (Type 1)
Name Zenn Timmer
Credential LMSW
Sex Male
Practice address 331 E State Rd Rm N8, Grant, MI, 49327
Phone (318) 342-3762
Fax (231) 834-5186
Enumeration date Feb 12, 2019
Last updated in NPPES Mar 17, 2021
Taxonomy & licenses
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 6801109015 (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.
Frequently asked questions
Is NPI 1407312739 active?
Yes, as of the latest NPPES snapshot, NPI 1407312739 is active (record last updated 2021-03-17).
How do I verify Zenn Timmer's NPI record?
Cross-check NPI 1407312739 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-17.