Milwaukee Health Services System
Milwaukee Health Services System holds 13 active organization NPIs in the federal registry, with practice locations in 5 Wisconsin cities. 7 list methadone clinic as their primary taxonomy; 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, 4
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.
5 NPIs were issued in 2008 alone, more than in any other year; none in 5 of the years between.
Milwaukee locations
The city with the most Milwaukee Health Services System NPIs. The full list of all 13 follows.
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1790837128 | 4800 S. 10TH STREET UNIT 1, Milwaukee | Methadone Clinic | Jan 17, 2007 |
| 1649326737 | 3707 N. RICHARDS STREET, Milwaukee | Methadone Clinic | Jan 25, 2007 |
| 1174798524 | 4800 S 10TH ST UNIT 1, Milwaukee | Mental Health Clinic/Center (Including Community Mental Health Center) | Apr 28, 2008 |
| 1780850594 | 3707 N RICHARDS ST, Milwaukee | Substance Use Disorder Rehabilitation Clinic/Center | May 1, 2008 |
All 13 locations, by city
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1467503193 | 3301 N. BALLARD ROAD STE. B, Appleton | Methadone Clinic | Jan 16, 2007 |
| 1700050085 | 3301 N BALLARD RD STE B, Appleton | Mental Health Clinic/Center (Including Community Mental Health Center) | Apr 17, 2008 |
| 1700250784 | 3440 OAKWOOD HILLS PKWY, Eau Claire | Methadone Clinic | Nov 13, 2015 |
| 1144684697 | 3440 OAKWOOD HILLS PKWY, Eau Claire | Methadone Clinic | Apr 11, 2016 |
| 1801947965 | 5109 WORLD DAIRY DR., Madison | Methadone Clinic | Jan 16, 2007 |
| 1194992404 | 5109 WORLD DAIRY DR, Madison | Mental Health Clinic/Center (Including Community Mental Health Center) | May 15, 2008 |
| 1790837128 | 4800 S. 10TH STREET UNIT 1, Milwaukee | Methadone Clinic | Jan 17, 2007 |
| 1649326737 | 3707 N. RICHARDS STREET, Milwaukee | Methadone Clinic | Jan 25, 2007 |
| 1174798524 | 4800 S 10TH ST UNIT 1, Milwaukee | Mental Health Clinic/Center (Including Community Mental Health Center) | Apr 28, 2008 |
| 1780850594 | 3707 N RICHARDS ST, Milwaukee | Substance Use Disorder Rehabilitation Clinic/Center | May 1, 2008 |
| 1336247139 | 210 WASHINGTON ST., Wausau | Methadone Clinic | Sep 20, 2006 |
| 1487811204 | 210 WASHINGTON ST., Wausau | Mental Health Clinic/Center (Including Community Mental Health Center) | May 20, 2008 |
| 1881942845 | 210 WASHINGTON STREET, Wausau | Clinic/Center | Aug 24, 2012 |
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 Milwaukee Health Services System have 13 NPIs?
An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Milwaukee Health Services System's NPIs list practice locations in 5 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.