Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Thomas Dieden Ackerman, MSW

Social Worker in Eau Claire, WI · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1649342338

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Registry record

Entity type Individual (Type 1)

Name Thomas Dieden Ackerman

Credential MSW

Sex Male

Practice address 2925 Mondovi Rd, Eau Claire, WI, 54701

Phone (715) 832-0238

Fax (715) 832-0771

Enumeration date Nov 15, 2006

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 6547-123 (WI) Primary

Other identifiers

Identifier	Type	State	Issuer
105505	Other	WI	SECURITY HEALTH PLAN #
6547-123	Other	WI	STATE MSW LICENSE #
39759400	Medicaid	WI	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Thomas Ackerman?

Thomas Ackerman 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.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.