Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Marie M Kerwin, LMSW
Clinical Social Worker in Troy, MI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1255431581
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Registry record
Entity type Individual (Type 1)
Name Ms. Marie M Kerwin
Credential LMSW
Sex Female
Practice address 2825 Livernois Rd, Troy, MI, 48083
Phone (248) 680-2060
Fax (248) 680-2099
Enumeration date Sep 25, 2006
Last updated in NPPES Mar 28, 2021
Taxonomy & licenses
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 680106514 (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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Marie Kerwin?
Marie Kerwin is registered in NPPES with the primary taxonomy of Clinical Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Henry Ford Behaviorl Health- Troy Medical Center Clinic/Center · Troy, MI NPI 1568495208 Henry Ford Behavioral Health- Troy Medical Center Substance Use Disorder Rehabilitation Clinic/Center · Troy, MI NPI 1093737090 Christy Luna-Laporte Clinical Social Worker · Troy, MI NPI 1356446587 Elizabeth Bradford Social Worker · Troy, MI NPI 1134225758 B White Clinical Social Worker · Troy, MI NPI 1114025509 Kelly Queen Professional Counselor · Troy, MI NPI 1861590283 Monica Balicki Addiction (Substance Use Disorder) Counselor · Troy, MI NPI 1629178942 Connie Nesbary Addiction (Substance Use Disorder) Counselor · Troy, MI NPI 1639279987
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-28.