Dr. Christopher Janssen

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.

• Sanford Usd Medical Center Hospital · Sioux Falls, SD · listed as Sanford Medical Center Pharmacy
• Avera McKennan Hospital & University Health Center Hospital · Sioux Falls, SD
• Sanford Luverne Medical Center Hospital · Luverne, MN
• Sanford Vermillion Medical Center Hospital · Vermillion, SD
• Sanford Worthington Medical Center Hospital · Worthington, MN

Colleagues at Sanford Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 273 clinicians in the practice; 12 are shown here.

• Dr. Otis Apau, MDMPH Internal Medicine Physician · Sioux Falls, SD
• Charles A Broberg, DC, PA Physician Assistant · Sioux Falls, SD
• Mr. Edward J Czarnecki, MD Diagnostic Radiology Physician · Sioux Falls, SD
• Mark Erickson, MD Internal Medicine Physician · Sioux Falls, SD
• Dr. Randall Scott Fenner, MD Endocrinology, Diabetes & Metabolism Physician · Sioux Falls, SD
• Gerald Fletcher, MD Gastroenterology Physician · Sioux Falls, SD
• Bhargavi Ghanta, MD Hospitalist Physician · Sioux Falls, SD
• Dr. Melanie Lavoie, DO Internal Medicine Physician · Sioux Falls, SD
• Jaishree Palanisamy Lerew, DO Otolaryngology Physician · Sioux Falls, SD
• Amanda Marie Moe, CNM Midwife · Sioux Falls, SD
• Mr. Shannon R Peck, MD Diagnostic Radiology Physician · Sioux Falls, SD
• Dr. David A Swanson, MD Nuclear Medicine Physician · Sioux Falls, SD