Jennifer Lynn Zizzo, NP

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.

• Lakeland Hospital, St Joseph Hospital · St Joseph, MI · listed as Lakeland Hospital at Niles and St Joseph, Inc

Colleagues at Lakeland Medical Practices

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 287 clinicians in the practice; 12 are shown here.

• Shannon Marie Brown, PA-C Physician Assistant · Stevensville, MI
• Hibajene Chisonga Family Nurse Practitioner · South Bend, IN
• Dr. Daniel Richard Douce, MD Hematology & Oncology Physician · Saint Joseph, MI
• Ashley Kay Dupuis Obstetrics & Gynecology Physician · Saint Joseph, MI
• Mrs. Diane Marie Ford, APRN Nurse Practitioner · Buchanan, MI
• Allina Ghimire, MD Internal Medicine Physician · Chicago, IL
• John R Gosling, MD Internal Medicine Physician · Saint Joseph, MI
• Dr. Ewanah D Johnson, MD Internal Medicine Physician · Saint Joseph, MI
• Adil Keskin, MD Pulmonary Disease Physician · Saint Joseph, MI
• Tracy McIntyre Anderson, CNM Advanced Practice Midwife · Saint Joseph, MI
• Dr. Douglas Gregory Tacket, DO Family Medicine Physician · Saint Joseph, MI
• Natalie Rose Zimmer-Maslon, DO Internal Medicine Physician · Saint Joseph, MI