Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Katherine L Dahlberg, LCSW
Social Worker in Flossmoor, IL · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1336298934
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Registry record
Entity type Individual (Type 1)
Name Katherine L Dahlberg
Credential LCSW
Sex Female
Practice address 3235 Vollmer Rd, Suite 119, Flossmoor, IL, 60422
Phone (708) 754-8815
Fax (708) 798-1315
Enumeration date Jan 10, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
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
How do I verify Katherine Dahlberg's NPI record?
Cross-check NPI 1336298934 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1336298934 active?
Yes, as of the latest NPPES snapshot, NPI 1336298934 is active (record last updated 2007-07-08).
Other providers at this practice address
Browse all → Marvin Zelkowitz Specialist · Flossmoor, IL NPI 1730189259 Stanley Selinger Clinical Psychologist · Flossmoor, IL NPI 1063490795 Awakened Alternatives Inc Home Health Agency · Flossmoor, IL NPI 1811926736 Human Services, Inc. Mental Health Clinic/Center (Including Community Mental Health Center) · Flossmoor, IL NPI 1336158088 Edward Marston Psychologist · Flossmoor, IL NPI 1538178181 Patricia Sawyer Social Worker · Flossmoor, IL NPI 1295744829 Dale Klooster Social Worker · Flossmoor, IL NPI 1982613402 Lekha Babu Hematology & Oncology Physician · Flossmoor, IL NPI 1740384023
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.