Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Miss Chelsea Ann Williams, M.A.
Psychologist in South Lyon, MI · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1316498967
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Registry record
Entity type Individual (Type 1)
Name Miss Chelsea Ann Williams
Credential M.A.
Sex Female
Practice address 10944 Mystic View Dr, South Lyon, MI, 48178
Phone (248) 486-2822
Enumeration date Oct 19, 2016
Last updated in NPPES Aug 15, 2023
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 6301016884 (MI) Secondary
103T00000X Psychologist Behavioral Health & Social Service Providers · License 6361007857 (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 1316498967 active?
Yes, as of the latest NPPES snapshot, NPI 1316498967 is active (record last updated 2023-08-15).
How do I verify Chelsea Williams's NPI record?
Cross-check NPI 1316498967 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 2023-08-15.