Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. John Martin Mcdonnell, MSW LCSW
Social Worker in Matteson, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1942394846
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Registry record
Entity type Individual (Type 1)
Name Mr. John Martin Mcdonnell
Credential MSW LCSW
Sex Male
Practice address 3624 W 216th Street, Matteson, IL, 60443
Phone (708) 481-4080
Fax (708) 481-7725
Enumeration date Oct 3, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
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 John Mcdonnell?
The National Provider Identifier (NPI) for John Mcdonnell is 1942394846, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Mcdonnell practice?
The practice location on file with NPPES is in Matteson, IL. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Karen Pedigo Psychologist · Matteson, IL NPI 1962596858 Dyann Bockstahler Social Worker · Matteson, IL NPI 1922192814 Center Services Inc Mental Health Clinic/Center (Including Community Mental Health Center) · Matteson, IL NPI 1902982127 Dyann Inc Mental Health Clinic/Center (Including Community Mental Health Center) · Matteson, IL NPI 1811073034
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.