Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Erin Elisabeth Nowak, BCBA, LCSW
Behavior Analyst in Oak Lawn, IL · enumerated 2009.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1386978823
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Registry record
Entity type Individual (Type 1)
Name Mrs. Erin Elisabeth Nowak
Credential BCBA, LCSW
Sex Female
Practice address 10402 S Cicero Ave, Oak Lawn, IL, 60453
Phone (708) 422-2898
Fax (708) 636-8778
Enumeration date Oct 1, 2009
Last updated in NPPES Apr 1, 2019
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 150.012271 (IL) Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 149014663 (IL) Secondary
103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-18-33298 (IL) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy.
About the LCSW credential
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 1386978823 active?
Yes, as of the latest NPPES snapshot, NPI 1386978823 is active (record last updated 2019-04-01).
How do I verify Erin Nowak's NPI record?
Cross-check NPI 1386978823 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-04-01.