David E Chalupa, 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. Those with a page here are linked.

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

Colleagues at Lakeland Hospitals at Niles and St Joseph Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 135 clinicians in the practice; 12 are shown here.

• Denise Christine Brown, CRNA Certified Registered Nurse Anesthetist · Elkhart, IN
• Christopher Steven Canu Physician Assistant · Orange City, IA
• Dr. Yu-Lam Christopher Chiu, MD Cardiovascular Disease Physician · Saint Joseph, MI
• Dr. Ryan Dudley, DO Anesthesiology Physician · Saint Joseph, MI
• Sarah L Engels, CRNA Certified Registered Nurse Anesthetist · Saint Joseph, MI
• Amena Iqbal Internal Medicine Physician · Saint Joseph, MI
• Dr. Thomas K Pow, MD Cardiovascular Disease Physician · Saint Joseph, MI
• Dr. Jonathan Rubin, MD Surgery Physician · Saint Joseph, MI
• Amrinder Singh, MD Neurology Physician · Saint Joseph, MI
• Amy Elizabeth Smith, CRNA Registered Nurse · Kalamazoo, MI
• Dr. Rafeek Olson Woods, MD Neurological Surgery Physician · Saint Joseph, MI
• Adam Zamzow, MD Anesthesiology Physician · Saint Joseph, MI

Other providers in Saint Joseph

• William T Makovic II, PA

  Individual Medical Physician Assistant · NPI 1295747525

  3903 Hollywood Rd, Saint Joseph, MI 49085-9149 · (269) 408-1100

• Mr. Eugene A Preston, PA-C

  Individual Medical Physician Assistant · NPI 1134225550

  3800 Hollywood Rd, Saint Joseph, MI 49085-8510 · (269) 428-2552

• Bailey Uggeri

  Individual Medical Physician Assistant · NPI 1174211940

  4077 S Cleveland Ave, Saint Joseph, MI 49085-9513 · (269) 429-2992

• MS. Corita Marie Steinkruger Wheeler, PA-C, DO

  Individual Medical Physician Assistant · NPI 1144429143

  1234 Napier Ave Saint Joseph Mi 49085, Saint Joseph, MI 49085-2112 · (269) 982-4941