NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David Eugene Lange, MD

Family Medicine Physician in Wausau, WI · enumerated 2006.

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

National Provider Identifier

1255449567

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name David Eugene Lange
Credential MD
Sex Male
Practice address 1901 Westwood Center Blvd, Wausau, WI, 54401
Enumeration date Aug 27, 2006
Last updated in NPPES Oct 1, 2018

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 34537 (WI) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 34537 (WI) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
31996700 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

Where does David Lange practice?
The practice location on file with NPPES is in Wausau, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for David Lange?
The National Provider Identifier (NPI) for David Lange is 1255449567, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-01.