Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Bronwen Leigh Jesswein, LLMSW
Clinical Social Worker in Mason, MI · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1326909631
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Registry record
Entity type Individual (Type 1)
Name Bronwen Leigh Jesswein
Credential LLMSW
Sex Female
Practice address 525 Okemos St, Mason, MI, 48854
Phone (517) 833-8100
Fax (517) 676-5460
Enumeration date Nov 18, 2025
Last updated in NPPES Nov 18, 2025
Taxonomy & licenses
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 6851118583 (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 1326909631 active?
Yes, as of the latest NPPES snapshot, NPI 1326909631 is active (record last updated 2025-11-18).
How do I verify Bronwen Jesswein's NPI record?
Cross-check NPI 1326909631 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Consumer Services, Inc. Adult Mental Health Clinic/Center · Mason, MI NPI 1306876735 Consumer Services Inc. Adult Mental Health Clinic/Center · Mason, MI NPI 1720268352 Consumer Services Inc Multi-Specialty Clinic/Center · Mason, MI NPI 1174704647 Kasey Gladding Addiction (Substance Use Disorder) Counselor · Mason, MI NPI 1447870407 Mary Elliott Marriage & Family Therapist · Mason, MI NPI 1356010110 Michelle Darnold Registered Nurse · Mason, MI NPI 1205623188 Brandi Johnson Student in an Organized Health Care Education/Training Program · Mason, MI NPI 1962361253
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-18.