Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mariel Mcelfresh, LCSW
Clinical Social Worker in Dyer, IN · enumerated 2026.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1578414678
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Registry record
Entity type Individual (Type 1)
Name Mariel Mcelfresh
Credential LCSW
Sex Female
Practice address 24 Joliet St, Dyer, IN, 46311
Phone (219) 322-5747
Fax (219) 864-2282
Enumeration date Feb 4, 2026
Last updated in NPPES Sep 22, 2026
Taxonomy & licenses
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 34011227A (IN) 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
What is the NPI number for Mariel Mcelfresh?
The National Provider Identifier (NPI) for Mariel Mcelfresh is 1578414678, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mariel Mcelfresh practice?
The practice location on file with NPPES is in Dyer, IN. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Stanley Ladowicz Clinical Social Worker · Dyer, IN NPI 1316948342 Harvey Levin Surgery Physician · Dyer, IN NPI 1972595361 Christine Chariton Social Worker · Dyer, IN NPI 1194719435 Brett Marcotte Emergency Medicine Physician · Dyer, IN NPI 1376537068 Howard Grundy Maternal & Fetal Medicine Physician · Dyer, IN NPI 1871587493 Peggy Quinn Clinical Social Worker · Dyer, IN NPI 1144215351 Shahnour Yaylayan Psychiatry Physician · Dyer, IN NPI 1104811009 Joseph Chamberlain Clinical Social Worker · Dyer, IN NPI 1124013933
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-09-22.