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MERCY HEALTH SYSTEM CORPORATION
NPI 1093768962
General Acute Care Hospital in Janesville, WI

Active since May 19, 2006
3/5
Hospital Overall Rating
1000 MINERAL POINT AVE, JANESVILLE, WI 53548(608) 756-6000 Get Directions Write a Review

NPPES record last updated: June 10, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 10, 2025, Dec 27, 2024, Nov 18, 2020 and 4 more (7 updates tracked since 2015).

About Mercy Health System Corporation NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MERCY HEALTH SYSTEM CORPORATION (NPI 1093768962), doing business as Mercy Hospital Janesville, is a healthcare organization registered as a general acute care hospital in Janesville, Wisconsin and active in the NPI registry since May 2006. The organization maintains 3 additional practice locations and lists Joseph D Malas, Cfo, as its authorized official.

NPPES Registry Identity

NPI1093768962
Entity TypeOrganization
Primary Taxonomy282N00000X
Legal Business NameMERCY HEALTH SYSTEM CORPORATION
Location Address1000 MINERAL POINT AVEJanesville, WI 53548-2940
Mailing Address1000 Mineral Point AveJanesville, WI 53548-2940 · (608) 756-6000
Phone(608) 756-6000
Organization SubpartYesParent: Mercy Health Corporation
Authorized OfficialJoseph D MalasCfo · (815) 971-6738
Enumeration DateMay 19, 2006
Last NPPES UpdateJune 10, 20257 updates tracked since enumeration
NPPES CertifiedJune 10, 2025
✔ NPI 1093768962 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 7

★ Primary SpecialtyGeneral Acute Care HospitalHospitals
Taxonomy Code282N00000X
License✔ Licensed in WI · 310800
Definition
An acute general hospital is an institution whose primary function is to provide inpatient diagnostic and therapeutic services for a variety of medical conditions, both surgical and non-surgical, to a wide population group. The hospital treats patients in an acute phase of illness or injury, characterized by a single episode or a fairly short duration, from which the patient returns to his or her normal or previous level of activity.
Also ListedOccupational TherapistTaxonomy 225X00000X · License 310-800 (WI)
Also ListedClinic/CenterTaxonomy 261Q00000X · License 310800 (WI)
Also ListedClinic/Center · Adolescent and Children Mental HealthTaxonomy 261QM0855X · License 310800 (WI)
Also ListedClinic/Center · Physical TherapyTaxonomy 261QP2000X · License 310-800 (WI)
Also ListedClinical Medical LaboratoryTaxonomy 291U00000X
Also ListedDurable Medical Equipment & Medical SuppliesTaxonomy 332B00000X · License 310800 (WI)
1000 MINERAL POINT AVE, Janesville, WI 53548
Open in Google Maps ↗

Other Names 1

Doing Business AsMercy Hospital Janesville

Secondary Practice Locations 3

Location 1903 Mineral Point AveJanesville, WI 53548-2970 · Phone (608) 756-5555 · Fax (608) 756-0174
Location 23400 Deerfield DriveJanesville, WI 53546 · Phone (608) 314-3660 · Fax (608) 314-3661
Location 32600 Humes Rd, ste 100Janesville, WI 53545-0491 · Phone (608) 741-2117 · Fax (608) 758-5761

Other Identifiers 4

Medicaid11011400WI
Medicaid43009200WI
Medicaid11011426WI
Medicaid43171321WI

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, MercyCare Health Plans.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)

Mercy Health System Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

1,151

Medicare enrollment records show 1,151 clinicians reassign Medicare billing to Mercy Health System Corporation, which bills Medicare for the services they deliver. Of these, 110 practice at this address and 333 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 68

Emergency Medicine141
Nurse Practitioner138
Family Practice110
Internal Medicine58
Anesthesiology53
Physical Therapist in Private Practice53
Pediatric Medicine42
Psychiatry39
60 other specialties517

Nearest to this location (20)

See all 1,151
Marwan Abdulsattar, MD
Anesthesiology
NPI 1265790695
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6731
✔ PECOS✔ Accepts MedicareSame address
Giuseppe Altamore, DO
Emergency Medicine
NPI 1477828564
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6611
✔ PECOS✔ Accepts MedicareSame address
Eric Arndt, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1851642441
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6731
✔ PECOS✔ Accepts MedicareSame address
Naveed Bari, M.D.
Critical Care (Intensivists)
NPI 1578665949
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6261
✔ PECOS✔ Accepts MedicareSame address
Alanna Briski, APRN
Nurse Practitioner
NPI 1235896242
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6868
✔ PECOS✔ Accepts MedicareSame address
Karuna Chilukuri, M.D.
Cardiovascular Disease (Cardiology)
NPI 1497941629
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6868
✔ PECOS✔ Accepts MedicareSame address
Marlise Davidson-Fiedler, MD
Internal Medicine
NPI 1528590908
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6611
✔ PECOS✔ Accepts MedicareSame address
Andrew Diab, MD
Interventional Radiology
NPI 1750541710
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6741
✔ PECOS✔ Accepts MedicareSame address
Derek Franzen
Occupational Therapist in Private Practice
NPI 1437826609
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6000
Same address
Maxim Gorelik, MD
Neurology
NPI 1548246101
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6826
✔ PECOS✔ Accepts MedicareSame address
Yusaf Hussain, DO
Allergy/Immunology
NPI 1538714456
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6000
✔ PECOSSame address
Katheryn Kaldor, DO
Obstetrics/Gynecology
NPI 1700922754
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6800
✔ PECOS✔ Accepts MedicareSame address
Francis Kaveggia, MD
Urology
NPI 1699833251
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 741-6990
✔ PECOS✔ Accepts MedicareSame address
Lauren Kolar, SLP
Qualified Speech Language Pathologist
NPI 1184391666
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6868
Same address
Keith Konkol, MD
Infectious Disease
NPI 1730255340
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6800
✔ PECOSSame address
Jason Moen, MD
Family Practice
NPI 1588152714
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6000
✔ PECOS✔ Accepts MedicareSame address
Chelsea Naber
Physical Therapist in Private Practice
NPI 1568356616
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6000
Same address
Alfred Nicolosi, MD
Cardiac Surgery
NPI 1760434443
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6686
✔ PECOSSame address
Joshua Orwig, DO
Diagnostic Radiology
NPI 1053601146
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6741
✔ PECOS✔ Accepts MedicareSame address
Emily Robinson, MD
Hematology/Oncology
NPI 1134271604
1000 MINERAL POINT AVE
Janesville, WI 53548
(608) 756-6890
✔ PECOS✔ Accepts MedicareSame address
See all 1,151 clinicians

Source: 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 Mercy Health System Corp (CMS certification number 520066), from CMS Care Compare.

Mercy Health System Corp

Acute Care Hospitals · Janesville, WI
3/5 CMS Overall Rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520066
Location1000 Mineral Point AveJanesville, WI 53548 · Rock County · (608) 756-6080
Emergency services Birthing friendly Meaningful use of EHRs

Patient Experience

HCAHPS patient survey · Jan 2023 – Dec 2023
3/5 summary rating
Nurse communication
3/5
Doctor communication
3/5
Staff responsiveness
4/5
Communication about medicines
4/5
Discharge information
4/5
Care transition
3/5
Cleanliness
3/5
Quietness
2/5
Overall hospital rating
3/5
Recommend hospital
3/5
Star ratings summarize responses from patients surveyed after discharge, collected through the CMS HCAHPS program.

Complications & Deaths 19

CMS Medicare PSI 90: Patient safety and adverse events composite
1.00 No different than national
Abdominopelvic accidental puncture or laceration rate
0.78 No different than national
Postoperative wound dehiscence rate
2.18 No different than national
Postoperative sepsis rate
7.28 No different than national
Perioperative pulmonary embolism or deep vein thrombosis rate
3.88 No different than national
Postoperative respiratory failure rate
11.20 No different than national

Infections 5

Clostridium Difficile (C.Diff)
4 observed cases · 14.079 predicted · 34,734 patient days
0.284 Better than the national benchmark
MRSA Bacteremia
1 observed case · 1.239 predicted · 34,734 patient days
0.807 No different than national
SSI - Colon Surgery
1 observed case · 2.216 predicted · 84 patient days
0.451 No different than national
Catheter Associated Urinary Tract Infections (ICU + select Wards)
3 observed cases · 3.857 predicted · 4,741 patient days
0.778 No different than national
Central Line Associated Bloodstream Infection (ICU + select Wards)
7 observed cases · 5.119 predicted · 6,424 patient days
1.367 No different than national

Unplanned Hospital Visits 14

Heart failure (HF) 30-Day Readmission Rate
213 No different than national
Rate of readmission for chronic obstructive pulmonary disease (COPD) patients
97 No different than national
Rate of readmission for CABG
34 No different than national
Acute Myocardial Infarction (AMI) 30-Day Readmission Rate
103 No different than national
Ratio of unplanned hospital visits after hospital outpatient surgery
355 No different than national
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapy
149 No different than national

Timely & Effective Care 17

Percentage of healthcare personnel who are up to date with COVID-19 vaccinations
71.3%
Emergency department volume
Medium
Discharged on Statin Medication
96%
Antithrombotic Therapy by End of Hospital Day 2
96%
Discharged on Antithrombotic Therapy
98%
Severe Sepsis 6-Hour Bundle
92%

Maternal Health 2

Elective Delivery
50%
Maternal Morbidity Structural Measure
Yes

Frequently 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 Mercy Health System Corporation's NPI number?

The NPI number for Mercy Health System Corporation is 1093768962. It was assigned to this organization in the NPPES registry on May 19, 2006. The provider is doing business as Mercy Hospital Janesville.

Where is Mercy Health System Corporation located?

Mercy Health System Corporation is located at 1000 Mineral Point Ave, Janesville, WI 53548. The listed phone number is (608) 756-6000.

What is Mercy Health System Corporation's specialty?

The primary specialty registered for this NPI is General Acute Care Hospital with taxonomy code 282N00000X.

Is Mercy Health System Corporation enrolled in Medicare?

Yes. Mercy Health System Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mercy Health System Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1,151 clinicians in 68 Medicare specialties reassign their Medicare billing to Mercy Health System Corporation. 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 Emergency Medicine (141), Nurse Practitioner (138) and Family Practice (110). Of these, 110 practice at this address and 333 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Is Mercy Health System Corporation a Medicare-certified hospital?

Yes. Mercy Health System Corp is a Medicare-certified hospital (Acute Care Hospitals). The hospital provides emergency services.

What quality rating does Mercy Health System Corporation have?

CMS rates Mercy Health System Corp 3 out of 5 stars overall on Care Compare, based on measures of safety, patient experience and outcomes. The full measure detail is in the Hospital Quality Ratings section above.

What insurance does Mercy Health System Corporation accept?

Health plans from Anthem Blue Cross and Blue Shield and MercyCare Health Plans list Mercy Health System Corporation 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 Mercy Health System Corporation was last updated on June 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.