Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. John G Touzios, MD
Surgery Physician in Waukesha, WI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1841369832
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Registry record
Entity type Individual (Type 1)
Name Dr. John G Touzios
Credential MD
Sex Male
Practice address 1111 Delafield St, Ste 209, Waukesha, WI, 53188
Phone (262) 542-0444
Fax (262) 540-8214
Enumeration date Nov 6, 2006
Last updated in NPPES Apr 24, 2019
Taxonomy & licenses
2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License 46066-020 (WI) Secondary
208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License 46066-020 (WI) Secondary
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 |
|---|---|---|---|
| 1841369832 | 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.
Frequently asked questions
How do I verify John Touzios's NPI record?
Cross-check NPI 1841369832 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1841369832 active?
Yes, as of the latest NPPES snapshot, NPI 1841369832 is active (record last updated 2019-04-24).
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-04-24.