Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. William James Brown, LMSW
Social Worker in Lansing, MI · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1346423951
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Registry record
Entity type Individual (Type 1)
Name Mr. William James Brown
Credential LMSW
Sex Male
Practice address 812 E Jolly Rd Ste 311, Lansing, MI, 48910
Phone (517) 346-8195
Fax (517) 346-8291
Enumeration date Dec 6, 2007
Last updated in NPPES Feb 13, 2024
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 6801089231 (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
Where does William Brown practice?
The practice location on file with NPPES is in Lansing, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Brown?
The National Provider Identifier (NPI) for William Brown is 1346423951, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Colleen Schmitt Clinical Social Worker · Lansing, MI NPI 1477826667 Amy Lillywhite Social Worker · Lansing, MI NPI 1609364595 Trace Alumbaugh Social Worker · Lansing, MI NPI 1437632643 Alyssa Van Fossen Social Worker · Lansing, MI NPI 1689158677 Lindsey Byrnes Social Worker · Lansing, MI NPI 1184108698 Cyndy Vue Social Worker · Lansing, MI NPI 1740765494 Ashley Fullerton Psychologist · Lansing, MI NPI 1871068643 Hannah Brown Social Worker · Lansing, MI NPI 1184199762
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-13.