Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. William H Nichols II, LLMSW, CADC
Social Worker in Chelsea, MI · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1376335984
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Registry record
Entity type Individual (Type 1)
Name Mr. William H Nichols II
Credential LLMSW, CADC
Sex Male
Practice address 350 N Main St Ste 150, Chelsea, MI, 48118
Phone (734) 593-5251
Enumeration date May 20, 2025
Last updated in NPPES May 20, 2025
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 6851118237 (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
What is the NPI number for William Nichols?
The National Provider Identifier (NPI) for William Nichols is 1376335984, a Type 1 (individual) record in the CMS NPPES registry.
Where does William Nichols practice?
The practice location on file with NPPES is in Chelsea, MI. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-20.