Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Thomas John Leuthner, D.C.

Chiropractor in Green Bay, WI · enumerated 2005 · practices at Back To Basics S.C..

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

National Provider Identifier

1871588871

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Registry record

Entity type Individual (Type 1)

Name Dr. Thomas John Leuthner

Credential D.C.

Sex Male

Practice address 1792 E Mason St, Green Bay, WI, 54302

Phone (920) 468-1967

Fax (920) 468-0405

Enumeration date Sep 15, 2005

Last updated in NPPES Jul 9, 2010

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 2252 (WI) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
38885300	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

Is NPI 1871588871 active?

Yes, as of the latest NPPES snapshot, NPI 1871588871 is active (record last updated 2010-07-09).

How do I verify Thomas Leuthner's NPI record?

Cross-check NPI 1871588871 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Joseph Millan Chiropractor · Green Bay, WI NPI 1093700023 Back To Basics S.C. Chiropractor · Green Bay, WI NPI 1326123084

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-07-09.