NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Greg N Womack, MD

Urology Physician in Waukesha, WI · enumerated 2006.

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

National Provider Identifier

1598708646

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Greg N Womack
Credential MD
Sex Male
Practice address 1111 Delafield St Ste 207, Urology Associates Ltd Sc, Waukesha, WI, 53188
Phone (262) 446-3593
Fax (262) 547-0379
Enumeration date Jun 14, 2006
Last updated in NPPES Jan 15, 2016

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 44588 (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
34266700 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

How do I verify Greg Womack's NPI record?
Cross-check NPI 1598708646 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1598708646 active?
Yes, as of the latest NPPES snapshot, NPI 1598708646 is active (record last updated 2016-01-15).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-01-15.