Mark Fletcher Bordick, 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.

• Edward Hospital Hospital · Naperville, IL
• Elmhurst Memorial Hospital Hospital · Elmhurst, IL

Colleagues at Endeavor Health Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3348 clinicians in the practice; 12 are shown here.

• Tina Bhargava, MD Internal Medicine Physician · Naperville, IL
• Dr. Amar Bharat Bhatt, MD Neurology Physician · Chicago, IL
• Catherine C Camilleri, MD Psychiatry Physician · Woodridge, IL
• David B Cespedes, DO Family Medicine Physician · Lombard, IL
• Juozas Gurevicius, MD Pain Medicine (Anesthesiology) Physician · Elmhurst, IL
• Sameer Jain, MD Family Medicine Physician · Evanston, IL
• Dr. Cheong Jun Lee, MD Surgery Physician · Skokie, IL
• MS. Maria E Onak, APN-CNP Adult Health Nurse Practitioner · Glenview, IL
• Dr. Anand Srinivasan, MD Adult Reconstructive Orthopaedic Surgery Physician · Evanston, IL
• Michael J. Waligora, MD Cardiovascular Disease Physician · Glenview, IL
• Dr. Evelyn Strzyz White, MD Internal Medicine Physician · Kildeer, IL
• Diane B. Zimmerman, PA Medical Physician Assistant · Gurnee, IL

Other providers in Elmhurst

• Taylor Lee Comstock, PA-C

  Individual Surgical Physician Assistant · NPI 1649607953

  1200 S York St Ste 2000, Elmhurst, IL 60126-5634 · (630) 646-7000

• Ryan Andjulo Irving, PA-C

  Individual Surgical Physician Assistant · NPI 1679282198

  1200 S York St Ste 4280, Elmhurst, IL 60126-5632 · (331) 221-9004

• Susan R Jahn, PHYSICIANASSISTANT

  Individual Surgical Physician Assistant · NPI 1700282803

  360 W Butterfield Rd #160, Elmhurst, IL 60126-5068 · (630) 782-9600

• Ziba Ona Kisielius, PA-C

  Individual Surgical Physician Assistant · NPI 1942034210

  1200 S York St Ste 4280, Elmhurst, IL 60126-5632 · (331) 221-9004