Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Melissa Ann Peterson, MSW, LSW
Social Worker in Lockport, IL · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1801668009
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Registry record
Entity type Individual (Type 1)
Name Melissa Ann Peterson
Credential MSW, LSW
Sex Female
Practice address 16614 W 159th St Ste 302, Lockport, IL, 60441
Phone (708) 341-1452
Enumeration date Oct 23, 2023
Last updated in NPPES Oct 23, 2023
Taxonomy & licenses
1041S0200X School Social Worker Behavioral Health & Social Service Providers · License 319534 (IL) Secondary
104100000X Social Worker Behavioral Health & Social Service Providers · License 150.109431 (IL) 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 Melissa Peterson practice?
The practice location on file with NPPES is in Lockport, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Melissa Peterson?
The National Provider Identifier (NPI) for Melissa Peterson is 1801668009, 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 2023-10-23.