Aurora Sinai Medical Center
Aurora Sinai Medical Center holds 7 active organization NPIs in the federal registry, with practice locations in 2 Wisconsin cities. Each location can bill under its own NPI.
Search the organization with your city to find the NPI for the location you visit or bill.
Find a location's NPIMilwaukee has the most NPIs, 6
Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.
Most NPIs were issued in 2007 and 2008
Source: CMS NPPES, enumeration dates.
3 NPIs were issued in 2007 alone, more than in any other year; none in 4 of the years between.
Milwaukee locations
The city with the most Aurora Sinai Medical Center NPIs. The full list of all 7 follows.
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1811941263 | 945 N 12TH ST, Milwaukee | General Acute Care Hospital | May 20, 2006 |
| 1619194297 | 1020 N 12TH ST, Milwaukee | Mental Health Clinic/Center (Including Community Mental Health Center) | Apr 18, 2007 |
| 1598982274 | 945 N 12TH ST, Milwaukee | Clinic/Center | Apr 20, 2007 |
| 1992987549 | 946 N VAN BUREN ST, Milwaukee | Non-Pharmacy Dispensing Site | Dec 5, 2007 |
| 1811172489 | 945 N 12TH ST, Milwaukee | Mental Health Clinic/Center (Including Community Mental Health Center) | Jan 2, 2008 |
| 1265605166 | 945 N 12TH ST, Milwaukee | Rehabilitation Hospital Unit | Apr 11, 2008 |
All 7 locations, by city
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1811941263 | 945 N 12TH ST, Milwaukee | General Acute Care Hospital | May 20, 2006 |
| 1619194297 | 1020 N 12TH ST, Milwaukee | Mental Health Clinic/Center (Including Community Mental Health Center) | Apr 18, 2007 |
| 1598982274 | 945 N 12TH ST, Milwaukee | Clinic/Center | Apr 20, 2007 |
| 1992987549 | 946 N VAN BUREN ST, Milwaukee | Non-Pharmacy Dispensing Site | Dec 5, 2007 |
| 1811172489 | 945 N 12TH ST, Milwaukee | Mental Health Clinic/Center (Including Community Mental Health Center) | Jan 2, 2008 |
| 1265605166 | 945 N 12TH ST, Milwaukee | Rehabilitation Hospital Unit | Apr 11, 2008 |
| 1700223849 | W353N6046 BAYSHORE CIR, Oconomowoc | General Acute Care Hospital | May 30, 2013 |
Checking an organization
- Match the NPI to the exact location you will visit or bill; each location can have its own.
- Confirm the business entity with the secretary of state.
- Check the HHS-OIG exclusion list for the organization and its owners.
- Verify each clinician you will see on their own record and with the state license search.
Common questions
Why does Aurora Sinai Medical Center have 7 NPIs?
An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Aurora Sinai Medical Center's NPIs list practice locations in 2 cities.
Is an organization NPI a license?
No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.
Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.