Mr. Christopher John Differding, PA-C

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

• Osf Saint Clare Medical Center Hospital · Princeton, IL · listed as Osf Healthcare System
• Osf Saint Elizabeth Mdl Ctr Hospital · Peru, IL · listed as St Margaret's Health-Peru
• Osf Saint Paul Medical Center Hospital · Mendota, IL

Colleagues at Illinois Urologic Health Surgeons SC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

• Steve Yunyoung Chung, MD Urology Physician · Utica, IL
• Mrs. Julie M Flanagan, ACNS, BC Adult Health Clinical Nurse Specialist · Utica, IL
• Martina Kotrba, PA Physician Assistant · Utica, IL
• Mandie L Nemeth, APN Nurse Practitioner · Peoria, IL
• Kayla Rokey, DNP-FNP Nurse Practitioner · Spring Valley, IL
• Shahnaz Saeed, MD Anatomic Pathology & Clinical Pathology Physician · Wilmette, IL
• Christian Bennett Schwartz, DO Urology Physician · Spring Valley, IL
• Jorie Swingel, FNP Family Nurse Practitioner · Utica, IL
• Jessica Turczyn, NP-C Nurse Practitioner · Utica, IL
• Anja Wolf, NP Nurse Practitioner · Sterling, IL

Other providers in Spring Valley

• Tamara L Dunlap-Workman, PA-C

  Individual Physician Assistant · NPI 1396811907

  600 E 1st St, Spring Valley, IL 61362-1512 · (815) 664-1600