Mr. Matthew Adam Nierengarten, APRN, CNP

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.

• Essentia Health St Mary'S Medical Center Hospital · Duluth, MN · listed as St Mary's Medical Center
• Essentia Health Virginia Hospital · Virginia, MN · listed as Essentia Health Virginia LLC
• St Marys Hospital Superior Hospital · Superior, WI · listed as St Mary's Hospital of Superior
• Essentia Health Duluth Hospital · Duluth, MN
• Rainy Lake Medical Center Hospital · International Falls, MN

Colleagues at Polinsky Medical Rehabilitation Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 380 clinicians in the practice; 12 are shown here.

• Claire R Campbell, MD Family Medicine Physician · Duluth, MN
• Amanda Jo Carlson, MD Student in an Organized Health Care Education/Training Program · Duluth, MN
• Elena Rose Cowen Bantle, PA-C Physician Assistant · Duluth, MN
• Dr. Brandon Christian Drazich, MD Emergency Medical Services (Emergency Medicine) Physician · Duluth, MN
• Christie Ehle Erickson IX Family Nurse Practitioner · Hermantown, MN
• Dr. Rebecca Kortum Hartman, MD Obstetrics & Gynecology Physician · Duluth, MN
• Ellie Lee Leask, PA Physician Assistant · Ashland, WI
• Kathleen Lynn Monaghan Surgery Physician · Duluth, MN
• Lauren Bowen Reoma, MD Internal Medicine Physician · Bethesda, MD
• Dr. Erinn Marie Riley, MD Student in an Organized Health Care Education/Training Program · Duluth, MN
• Dr. Dino Terzic, MD Neurological Surgery Physician · Duluth, MN
• Dr. Jessica M Titus, MD Vascular Surgery Physician · Duluth, MN

Other providers in Duluth

• MS. Emily Rose Grandson, APRN, CNP

  Individual Critical Care Medicine Nurse Practitioner · NPI 1427710458

  407 E 3rd St, Duluth, MN 55805-1950 · (218) 786-4000

• MS. Claire Alexandra Moldenhauer, APRN, CNP

  Individual Critical Care Medicine Nurse Practitioner · NPI 1811678964

  400 E 3rd St, Duluth, MN 55805-1951 · (218) 786-8364

• MS. Shannon Marie Smith, APRN, CNP

  Individual Critical Care Medicine Nurse Practitioner · NPI 1831816727

  400 E 3rd St, Duluth, MN 55805-1951 · (218) 786-8364

• MS. Danielle Elizabeth Urness, APRN, CNP

  Individual Critical Care Medicine Nurse Practitioner · NPI 1215704044

  400 E 3rd St, Duluth, MN 55805-1951 · (218) 786-8364