Natalie Witek, 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. Those with a page here are linked.

• Advocate Christ Hospital & Medical Center Hospital · Oak Lawn, IL · listed as Advocate Christ Medical Center
• Advocate Good Samaritan Hospital Hospital · Downers Grove, IL
• Advocate Good Shepherd Hospital Hospital · Barrington, IL · listed as Good Shepherd Hospital
• Advocate Lutheran General Hospital Hospital · Park Ridge, IL
• Advocate Home Health Care Serv Home health agency · Oakbrook, IL

Colleagues at Advocate Health and Hospitals Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3079 clinicians in the practice; 12 are shown here.

• Brooke Lee Aarhus, PA-C Physician Assistant · Park Ridge, IL
• Sarah Boersma, FNP Family Nurse Practitioner · Oak Lawn, IL
• Anne Mae Doloricon Rosenthal, PT Physical Therapist · Chicago, IL
• MS. Latoya S Duncan, FPANP Family Nurse Practitioner · Chicago, IL
• Nishat Fatima, MD Endocrinology, Diabetes & Metabolism Physician · Park Ridge, IL
• Mary McKenna, MD Student in an Organized Health Care Education/Training Program · Park Ridge, IL
• Brian O'Byrne Internal Medicine Physician · Elgin, IL
• Dr. Molly Kathryn Phillips, DO Pediatrics Physician · Oak Lawn, IL
• Christopher Jared Sciamanna, DO Advanced Heart Failure and Transplant Cardiology Physician · Oak Lawn, IL
• Jennifer A Stancati, MD Critical Care Medicine (Anesthesiology) Physician · Oak Lawn, IL
• Kaitlin Mae Steffenhagen, DO Obstetrics & Gynecology Physician · Barrington, IL
• Mrs. Amy Lynn Walther, APNP Family Nurse Practitioner · Libertyville, IL

Other providers in Park Ridge

• Dr. Danielle Renee Rice, MD

  Individual Neurology Physician · NPI 1184942013

  1875 Dempster St Ste 625, Park Ridge, IL 60068-1137 · (847) 723-4088

• Dr. Stasia Rouse, MD

  Individual Neurology Physician · NPI 1699193847

  1875 Dempster St Ste 625, Park Ridge, IL 60068-1137 · (847) 723-7024

• Mian Zain Ul Sajadeen Urfy, MD

  Individual Neurology Physician · NPI 1528267093

  1875 Dempster St Ste 625, Park Ridge, IL 60068-1137 · (847) 723-4088

• Dr. Smriti N Wagle, DO

  Individual Neurology Physician · NPI 1942241302

  1875 Dempster St Ste 625, Park Ridge, IL 60068-1137 · (847) 723-4088