Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ren M Iossi
Nurse Practitioner in Milwaukee, WI · enumerated 2014.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1154744977
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Registry record
Entity type Individual (Type 1)
Name Ren M Iossi
Sex Female
Practice address 2801 W Kinnickinnic River Pkwy Ste 540, Milwaukee, WI, 53215
Phone (414) 385-2601
Enumeration date Jan 30, 2014
Last updated in NPPES Mar 11, 2026
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 5301 (WI) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 100036249 | 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
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 Ren Iossi?
Ren Iossi is registered in NPPES with the primary taxonomy of Nurse Practitioner. 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 2026-03-11.