Clinicians affiliated with Mercy Health System Corp

Acute Care Hospitals · Voluntary non-profit - Private · 1000 Mineral Point Ave, Janesville, WI 53547 · Janesville-Beloit, WI · CCN 520066

Affiliation snapshotNovember 2, 2026CMS Doctors and Clinicians Facility Affiliation file, current snapshot (no end-of-2024 archive), applied to 2024
Activity year2024Medicare Part B claims, Original Medicare fee-for-service

424 clinicians affiliated with Mercy Health System Corp are in the 2024 Medicare Part B data (480 listed in the affiliation file).

Each clinician's exact figures are in their Physician Report, from their page. View sample report · Already purchased? Open your report (earlier Local report and passes)

Affiliated clinicians by specialty, 2024

All specialties · Nurse Practitioner (55) · Emergency Medicine (52) · Family Practice (48) · Physician Assistant (25) · Anesthesiology (22) · Internal Medicine (20) · Diagnostic Radiology (16) · Hospitalist (15) · Cardiology (11) · General Surgery (11) · Orthopedic Surgery (11) · Neurology (10) · Ophthalmology (10) · Obstetrics & Gynecology (9) · Pathology (9) · Podiatry (8) · Urology (8) · Gastroenterology (7) · Neurosurgery (7) · Pulmonary Disease (7) · Critical Care (Intensivists) (6) · Nephrology (5) · Interventional Cardiology (4) · Certified Registered Nurse Anesthetist (CRNA) (3) · Hematology-Oncology (3) · Interventional Radiology (3) · Optometry (3) · Psychiatry (3) · Radiation Oncology (3) · Cardiac Surgery (2) · Chiropractic (2) · Dermatology (2) · Endocrinology (2) · Otolaryngology (2) · Physical Medicine and Rehabilitation (2) · Psychologist, Clinical (2) · Rheumatology (2) · Sports Medicine (2) · Vascular Surgery (2) · Allergy/ Immunology (1) · Clinical Cardiac Electrophysiology (1) · Geriatric Medicine (1) · Licensed Clinical Social Worker (1) · Medical Oncology (1) · Pain Management (1) · Pediatric Medicine (1) · Plastic and Reconstructive Surgery (1) · Sleep Medicine (1) · Thoracic Surgery (1)

Clinicians affiliated with Mercy Health System Corp, 2024

Alphabetical by last name; 201–300 of 424.

NameSpecialtyCity
Christopher M Koenig, DOEmergency MedicineJanesville, WI
Maria Kostantacos, APRN, FNPNurse PractitionerJanesville, WI
Joseph G Kovacic, DOEmergency MedicineJanesville, WI
Jeffrey A Kowalski, MDFamily PracticeElkhorn, WI
Kevin R Kozak, MD, PHDRadiation OncologyBaraboo, WI
Tamara R Kramer, MDFamily PracticeJanesville, WI
Adrienne M KrysiakEmergency MedicineGreat Falls, MT
Daniel J Kulas, MDFamily PracticeJanesville, WI
Devakumaran J Kumar, MDNeurologyIowa City, IA
Nicholas J Kuntz, M.D.UrologyMeridian, ID
Jennifer L Laatsch, PA-CPhysician AssistantJanesville, WI
Daniel R Langan, CRNACertified Registered Nurse Anesthetist (CRNA)Baraboo, WI
Robert LangenohlEmergency MedicineFort Belvoir, VA
Andreea I Lapusca, MDAnesthesiologyJanesville, WI
Kenneth Laput, NPNurse PractitionerSugar Grove, IL
Elaine M Lawrence, NPNurse PractitionerSycamore, IL
Julia K Leblanc, MDGastroenterologyCrystal Lake, IL
Kerry Lecky, M.D.HospitalistMarietta, OH
Rebecca J Levshetz, PHYSICIAN ASSISTANTPhysician AssistantJanesville, WI
Kari L Lewicki, FNPNurse PractitionerFort Atkinson, WI
Ann Mary Ligman-Schliem, DNP, FNP- B.C.Nurse PractitionerRockford, IL
Sarah R Linder, APN FNP-BCNurse PractitionerRockford, IL
Mykola Lisowsky, DPMPodiatryHarvard, IL
Patrick P Litonjua, MDEndocrinologyJanesville, WI
Archibald J Loch, DPMPodiatryLake Geneva, WI
Monica Logan, MDEmergency MedicineHazel Crest, IL
Jennifer LongNurse PractitionerAurora, IL
Robert P Long, DOEmergency MedicineRockford, IL
Kimberley R Lovelace, MDOphthalmologyJanesville, WI
Meghan G Lubner, MDDiagnostic RadiologyMadison, WI
Craig C Lyon, M.D.Orthopedic SurgeryLake Geneva, WI
Tahir Mahmood, MDInternal MedicineLombard, IL
Asad Majid, M.D.NephrologyGeneseo, NY
Dennys E Maldonado, MDFamily PracticeJanesville, WI
Vishnu Raj Kumar Mani, M.D.General SurgeryRockford, IL
Waleed Mansour, DOEmergency MedicineRockford, IL
Muhammad A Maqsood, M.D.AnesthesiologyIowa City, IA
Camelia E Marian, MDInternal MedicineAlgonquin, IL
Sean W Marquis, MDEmergency MedicineJanesville, WI
Jennifer L Martin, APRN, DNPNurse PractitionerJanesville, WI
Julie M Martin, APRN, FNPNurse PractitionerJanesville, WI
Muhammad R Marwali, MDCardiologyGreen Bay, WI
Michael A Masteller, M.D.General SurgeryChicago, IL
Benjamin Mathew, MDOphthalmologyAurora, IL
David P Matthews, MDEmergency MedicineFond Du Lac, WI
Leaellyn Mccarthy, APRN NPFPNurse PractitionerJanesville, WI
Michelle J Mclaughlin, ODOptometryJanesville, WI
Kaley D Meicher, PAPhysician AssistantMilwaukee, WI
Hamayun S Mian, M.D.UrologyDe Pere, WI
Lisa M Millard, MDAnesthesiologyJanesville, WI
Amber K Miller, APRNNurse PractitionerWatertown, WI
Benjamin C Miller, PMHNPNurse PractitionerJanesville, WI
Kathleen H Miller, MDEmergency MedicineJanesville, WI
Kristin L Miller, DOObstetrics & GynecologyJanesville, WI
Haley L MillsPhysician AssistantJanesville, WI
Murtaza A MirzaInternal MedicineNorth Chicago, IL
Jason R Moen, MDFamily PracticeJanesville, WI
Shahid Mohammad, DOFamily PracticeRockford, IL
Mustafa Abdul Waheed Mohammed, MDNeurologyJanesville, WI
Mubeen Khan Mohammed AbdulInternal MedicineRockford, IL
Syed M Mohiuddin, MDFamily PracticeRockford, IL
Jennifer M Morema, FNPNurse PractitionerHuntley, IL
Meridyth K Munns, MDObstetrics & GynecologyJanesville, WI
Gary Myron, M.D.HospitalistLake Geneva, WI
Amin Ur-Rehman Nadeem, MDCritical Care (Intensivists)Mchenry, IL
Patricia A Nahn, MDObstetrics & GynecologyJanesville, WI
Guruprasad D Naik, MDInterventional CardiologyMarshfield, WI
Rasheed Nawaz, MDDiagnostic RadiologyMadison, WI
David D Nelsen, MDDermatologyJanesville, WI
Carol J Neuman, MDObstetrics & GynecologyJanesville, WI
Tonya R Neumann, M.D.Emergency MedicineBeaver Dam, WI
Dorothy Newmark, MDObstetrics & GynecologyJanesville, WI
Jeffrey R Nichols, DOEmergency MedicineJanesville, WI
Kent A Nickell, M.D.PathologyWaterloo, IA
Francis J Nicolosi, MDFamily PracticeRockford, IL
David Nilsen, D.O.Orthopedic SurgeryJanesville, WI
Daniel Ofori, MDOphthalmologyMemphis, TN
Kandi Ogden-MolesFamily PracticeYakima, WA
Tanya N Olin, APRN, PMHNP-BCNurse PractitionerJanesville, WI
Pawel Olszewski, MDInternal MedicineBeloit, WI
Bashar A Omari, MDNephrologyLa Crosse, WI
Catherine L Onsrud, FNPNurse PractitionerWatertown, WI
Stephanie Onstad, FNP, APNPNurse PractitionerMount Pleasant, WI
Daniel Orozco, MDNeurologyJanesville, WI
Carlos D Ortega, M.D.General SurgeryChicago, IL
Joshua L Orwig, DODiagnostic RadiologyJanesville, WI
Dayna C Osborne, APNPNurse PractitionerJanesville, WI
Anastasia Osipova, MD,PHDObstetrics & GynecologyMarshfield, WI
Maciej Padowski, D.O.Emergency MedicineDes Plaines, IL
Niraj H Pahlajani, M.D.Radiation OncologyAustin, TX
Hariharan Palayapalayam Ganapathi, MDUrologyTampa, FL
Douglas R Palmer, MDOrthopedic SurgeryJanesville, WI
Arpan J Patel, M.D.AnesthesiologySchaumburg, IL
Kunal Patel, M.D.Pulmonary DiseasePleasant Prairie, WI
Parthiv B Patel, D.OOrthopedic SurgeryHillsdale, MI
Enrique F Perez, MDFamily PracticeJanesville, WI
Sarah L Pieper, PA-CPhysician AssistantLake Geneva, WI
Cory Pierson, MDDiagnostic RadiologyMadison, WI
Stewart PineEmergency MedicineChicago, IL
Brett Polan, DOEmergency MedicineRockford, IL

Affiliation comes from the CMS Doctors and Clinicians Facility Affiliation file, hospital rows only; name, address and type from the CMS Hospital General Information file. CMS does not publish an end-of-year archive of the affiliation file, so the current snapshot is applied to the latest data year. A clinician listed with several hospitals or groups appears on each of their pages. How hospital pages are built