Maggie Collison, MD

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.

• John H Stroger Jr Hospital Hospital · Chicago, IL · listed as John Stroger, Jr Hospital

Colleagues at Cook County

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 787 clinicians in the practice; 12 are shown here.

• Dr. Adekonla Tolulope Adegunsoye, MD Internal Medicine Physician · Chicago, IL
• Steven R Bonomo, MD Surgery Physician · Chicago, IL
• Sana Rafiq Chaudry, MD, MBBS Internal Medicine Physician · Zion, IL
• Mr. Ron C Chitekwe, PA-C Physician Assistant · Chicago, IL
• Mrs. Elamma Chollampel, FNP Family Nurse Practitioner · Chicago, IL
• Teresa Llorens, MD Internal Medicine Physician · Rowley, MA
• Dr. Elza G Matrova, MD Cytopathology Physician · Omaha, NE
• Dr. Katherine Mejia, PHD Psychologist · Chicago, IL
• Leticia Rios Social Worker · Chicago, IL
• Athittaya Techawantochandej, MD Internal Medicine Physician · Chicago, IL
• Olga S Vinokur, MD Diagnostic Radiology Physician · Berwyn, IL
• Ashlea Winfield-Dial, MD Emergency Medicine Physician · Chicago, IL

Other providers in Glenview

• Francis Vincent Cook, MD

  Individual Infectious Disease Physician · NPI 1649205220

  2100 Pfingsten Rd Ste B100, Glenview, IL 60026-1301 · (847) 657-5959

• Dr. Leonard Kaplan, MD

  Individual Infectious Disease Physician · NPI 1386630390

  2150 Pfingsten Rd Ste B100, Glenview, IL 60026-1361 · (847) 657-5959

• Dr. Karen M Krueger, MD

  Individual Infectious Disease Physician · NPI 1134484488

  2150 Pfingsten Rd Ste B100, Glenview, IL 60026-1361 · (847) 657-5959

• Dr. Christine Wilkins Lucky, MD

  Individual Infectious Disease Physician · NPI 1972064624

  2150 Pfingsten Rd Ste 3000, Glenview, IL 60026-1314 · (847) 657-5959