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MERCY HEALTH SYSTEM CORPORATION
NPI 1598718603
Clinic/Center - Multi-Specialty in Janesville, WI

Active since May 18, 2006
580 N WASHINGTON ST, JANESVILLE, WI 53548(608) 741-7630(608) 741-6890 Get Directions Write a Review

NPPES record last updated: February 25, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 11, 2025, Mar 18, 2025, Dec 30, 2024 and 6 more (9 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 1598718603), doing business as Mhs Physician Services, is a healthcare organization registered as a multi-specialty in Janesville, Wisconsin and active in the NPI registry since May 2006. The organization lists Joseph D Malas, Cfo - Authorized Official, as its authorized official.

NPPES Registry Identity

NPI1598718603
Entity TypeOrganization
Primary Taxonomy261QM1300X
Legal Business NameMERCY HEALTH SYSTEM CORPORATION
Location Address580 N WASHINGTON STJanesville, WI 53548-2984
Mailing Address29624 Network PlChicago, IL 60673-1296 · (608) 741-7630 · Fax (608) 741-6890
Phone(608) 741-7630
Fax(608) 741-6890
Organization SubpartYesParent: Mercy Health Corporation
Authorized OfficialJoseph D MalasCfo - Authorized Official · (815) 971-6738
Enumeration DateMay 18, 2006
Last NPPES UpdateFebruary 25, 20269 updates tracked since enumeration
NPPES CertifiedFebruary 25, 2026
✔ NPI 1598718603 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyClinic/Center · Multi-SpecialtyAmbulatory Health Care Facilities
Taxonomy Code261QM1300X
Also ListedClinic/CenterTaxonomy 261Q00000X · License 310800 (WI)
580 N WASHINGTON ST, Janesville, WI 53548
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Other Names 1

Doing Business AsMhs Physician Services

Other Identifiers 2

Medicaid32796500WI
Other5621473IL · Bcbsil

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware and more.Insurance ›

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

THOMAS F MCCOY DO
Physical Medicine & Rehabilitation
580 N WASHINGTON ST, DEAN MEDICAL CENTER
JANESVILLE, WI 53548
Rock County (608) 755-3500
JEFFREY W ELSER
Pharmacist
580 N WASHINGTON ST, SUITE 300
JANESVILLE, WI 53548
Rock County (608) 755-3599
ALLISON RAE BRADT BCBA, MS
Behavior Analyst
580 N WASHINGTON ST
JANESVILLE, WI 53548
Rock County (608) 756-5555
AMIE M BURKE BCBA, MS
Behavior Analyst
580 N WASHINGTON ST
JANESVILLE, WI 53548
Rock County (608) 756-5555
MARIA L. HANING SLP
Speech-Language Pathologist
580 N WASHINGTON ST
JANESVILLE, WI 53548
Rock County (608) 756-5555
ROCK VALLEY RADIOLOGY, SC
Radiology (Diagnostic Radiology)
580 N WASHINGTON ST
JANESVILLE, WI 53548
Rock County (608) 755-3589
AUDREY T SHOMOS CD
Dietitian, Registered
580 N WASHINGTON ST, DEAN MEDICAL CENTER
JANESVILLE, WI 53548
Rock County (608) 755-3500
AMBER L BECHER SLP
Speech-Language Pathologist
580 N WASHINGTON ST
JANESVILLE, WI 53548
Rock County (608) 756-5555

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 1598718603. It was assigned to this organization in the NPPES registry on May 18, 2006. The provider is doing business as Mhs Physician Services.

Where is Mercy Health System Corporation located?

Mercy Health System Corporation is located at 580 N Washington St, Janesville, WI 53548. The listed phone number is (608) 741-7630.

What is Mercy Health System Corporation's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Multi-Specialty, with taxonomy code 261QM1300X.

What insurance does Mercy Health System Corporation accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Anthem Blue Cross and Blue Shield and BlueCross BlueShield of Tennessee and 2 other insurers 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 February 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.