Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Kelly Martinczak, LLSW, LSW
Social Worker in Niles, MI · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1801149729
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Registry record
Entity type Individual (Type 1)
Name Kelly Martinczak
Credential LLSW, LSW
Sex Female
Practice address 311 E Main St, Niles, MI, 49120
Phone (269) 687-5050
Fax (269) 687-5899
Enumeration date Oct 16, 2012
Last updated in NPPES Oct 16, 2012
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 6801094978 (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 Kelly Martinczak practice?
The practice location on file with NPPES is in Niles, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Kelly Martinczak?
The National Provider Identifier (NPI) for Kelly Martinczak is 1801149729, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-16.