Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Anna Marie Hefner, LMSW
Social Worker in Spencer, IA · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1891474995
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Registry record
Entity type Individual (Type 1)
Name Anna Marie Hefner
Credential LMSW
Sex Female
Practice address 201 E 11th St, Spencer, IA, 51301
Phone (712) 262-2922
Enumeration date Jul 17, 2023
Last updated in NPPES Jul 17, 2023
Taxonomy & licenses
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 Anna Hefner?
Anna Hefner 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
Browse all → Northwest Iowa Mental Health Center Mental Health Clinic/Center (Including Community Mental Health Center) · Spencer, IA NPI 1689669459 William Kersting Clinical Social Worker · Spencer, IA NPI 1912981978 Deborah Bush Clinical Social Worker · Spencer, IA NPI 1396713210 Nancy Howe Psychiatric/Mental Health Nurse Practitioner · Spencer, IA NPI 1346298221 Barbara Mccabe Psychiatry Physician · Spencer, IA NPI 1285682948 Roger Littlefield Psychologist · Spencer, IA NPI 1780633628 Charlotte Nissen Clinical Social Worker · Spencer, IA NPI 1932159340 Dickinson County Case Management Agency · Spencer, IA NPI 1205912094
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-17.