NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David William Litzau, M.D.

Diagnostic Radiology Physician in St Francis, WI · enumerated 2006.

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

National Provider Identifier

1811929672

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. David William Litzau
Credential M.D.
Sex Male
Practice address 2000 E Layton Ave, St Francis, WI, 53235
Fax (414) 747-8848
Enumeration date Jul 6, 2006
Last updated in NPPES Jul 12, 2024

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 41370-020 (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
34512100 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 is the NPI number for David Litzau?
The National Provider Identifier (NPI) for David Litzau is 1811929672, a Type 1 (individual) record in the CMS NPPES registry.
Where does David Litzau practice?
The practice location on file with NPPES is in St Francis, WI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-12.