Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
David J Katz, MD
Urology Physician in Eau Claire, WI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1053497131
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Registry record
Entity type Individual (Type 1)
Name David J Katz
Credential MD
Sex Male
Practice address 3203 Stein Boulevard, Eau Claire, WI, 54701
Phone (715) 835-6548
Fax (715) 835-7708
Enumeration date Oct 31, 2006
Last updated in NPPES Sep 3, 2009
Taxonomy & licenses
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 |
|---|---|---|---|
| 19-00255 | Other | WI | MEDICA |
| 17319-020 | Other | WI | LICENSE |
| 31066600 | Medicaid | WI | - |
| 208D3KA | Other | WI | HMO OF WISCONSIN |
| 5493 | Other | WI | SECURITY HEALTH PLAN |
| KOO217 | Other | WI | WAUSAU INSURANCE |
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 David Katz?
David Katz is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-09-03.