Mercy Health System Corporation
NPI 1699728550 · Critical Access Hospital · Lake Geneva, WI
Enrolled with Medicare as Part a Provider - Critical Access Hospital · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mercy Health System Corporation is a Critical Access Hospital organization in Lake Geneva, WI (NPI 1699728550).
Provider details
- NPI number
- 1699728550
- Entity type
- Organization
- Primary specialty
- Critical Access HospitalHospitals
- Parent organization
- Mercy Health Corporation
- Organization subpart
- Yes
- Authorized official
- Joseph Malas, Cfo(815) 971-6738
- License
- 310-800 (WI)
Specialties & taxonomies
Hospitals
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Ambulatory Health Care Facilities
Suppliers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Mercy Walworth Hospital and Medical Center
- Doing business as
- Mercy Walworth Hospital and Medical Center
Registry dates
- Enumerated
- 2006-05-19
- Last updated
- 2025-06-11
- Certified
- 2025-06-11
Frequently asked questions
- What is Mercy Health System Corporation's NPI number?
- Mercy Health System Corporation's National Provider Identifier (NPI) is 1699728550, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mercy Health System Corporation?
- Mercy Health System Corporation is classified in the NPPES registry as Critical Access Hospital (Hospitals).
- Where is Mercy Health System Corporation located?
- Mercy Health System Corporation's practice location on file with NPPES is N2950 State Road 67, Lake Geneva, WI 53147-2655.
- What is Mercy Health System Corporation's phone number?
- The practice phone number listed in the NPPES registry for Mercy Health System Corporation is (262) 245-0535.
- Does Mercy Health System Corporation accept Medicare?
- Mercy Health System Corporation is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Mercy Health System Corporation?
- The authorized official listed on Mercy Health System Corporation's NPPES record is Joseph Malas, Cfo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mercy Health System Corporation's NPI active?
- Yes — Mercy Health System Corporation's NPI (1699728550) is active in the NPPES registry as of the last update on 2025-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.