Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Marilyn M. Caruthers
Social Worker in Gary, IN · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1073834875
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Registry record
Entity type Individual (Type 1)
Name Mrs. Marilyn M. Caruthers
Sex Female
Practice address 308 E 21st Ave, Gary, IN, 46407
Phone (219) 886-1320
Fax (219) 886-1319
Enumeration date Jun 15, 2010
Last updated in NPPES Jun 15, 2010
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 33001019A (IN) 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
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Marilyn Caruthers?
Marilyn Caruthers is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-15.