WAUKESHA COUNTY
NPI 1407988892
Psychiatric Hospital in Waukesha, WI
About Waukesha County NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WAUKESHA COUNTY (NPI 1407988892) is a healthcare organization registered as a psychiatric hospital in Waukesha, Wisconsin and active in the NPI registry since March 2007. The organization lists David M Derosier, Credentialing Specialist, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Waukesha County is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
79Medicare enrollment records show 79 clinicians reassign Medicare billing to Waukesha County, which bills Medicare for the services they deliver. Of these, 5 practice at this address and 45 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 8
Nearest to this location (20)
See all 79Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Quality Ratings CMS Care Compare
Quality and patient-experience ratings for Waukesha County Mental Health Ctr (CMS certification number 524026), from CMS Care Compare.
Waukesha County Mental Health Ctr
Psychiatric · Waukesha, WIFrequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Waukesha County's NPI number?
The NPI number for Waukesha County is 1407988892. It was assigned to this organization in the NPPES registry on March 12, 2007. The provider is also known as Waukesha County (MHC Inpatient).
Where is Waukesha County located?
Waukesha County is located at 1501 Airport Rd, Waukesha, WI 53188. The listed phone number is (262) 548-7950.
What is Waukesha County's specialty?
The primary specialty registered for this NPI is Psychiatric Hospital with taxonomy code 283Q00000X.
Is Waukesha County enrolled in Medicare?
Yes. Waukesha County is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Waukesha County?
According to the CMS Revalidation Reassignment List (October 2026 release), 79 clinicians in 8 Medicare specialties reassign their Medicare billing to Waukesha County. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Clinical Social Worker (23), Psychiatry (20) and Mental Health Counselor (15). Of these, 5 practice at this address and 45 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Is Waukesha County a Medicare-certified hospital?
Yes. Waukesha County Mental Health Ctr is a Medicare-certified hospital (Psychiatric).
What insurance does Waukesha County accept?
Health plans from Anthem Blue Cross and Blue Shield, CareSource (Common Ground Healthcare), Dean Health Plan, Network Health and Quartz and 1 other insurer list Waukesha County as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Waukesha County was last updated on November 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Waukesha County · NPI 1407988892
Psychiatric Hospital organization in Waukesha, Wisconsin. Organization record, active in the CMS NPPES registry since March 12, 2007.
## Identity
- **NPI:** 1407988892 (Entity type: Organization)
- **Enumerated:** March 12, 2007
- **Primary specialty:** Psychiatric Hospital · taxonomy 283Q00000X
- **Also known as:** Waukesha County (MHC Inpatient) (Other Name)
- **Organization subpart:** No
- **Authorized official:** David Derosier, CREDENTIALING SPECIALIST
## Practice location
- **Address:** 1501 AIRPORT RD, Waukesha, WI 53188-3632
- **Phone:** (262) 548-7950 · **Fax:** (262) 896-8046
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 79 clinicians in 8 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Clinical Social Worker (23), Psychiatry (20), Mental Health Counselor (15); 5 practice at this address and 45 within 10 miles; [full list](https://npiprofile.com/npi/1407988892/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 10, 2025
- **Other identifiers:** Other 10063300 (WV); Medicaid 10063300 (WI)
---
Source: [NPI Profile](https://npiprofile.com/npi/1407988892) · Data from the CMS NPPES public registry.