APP Leadership

Maria Lofgren portrait

Contact Our APP Director

Maria Lofgren, DNP, ARNP, NNP-BC, CPNP, FAANP, associate clinical professor UI College of Nursing, has been part of UI Health Care for more than 30 years.

As Director of Advanced Practice Providers, Maria works with nursing and medical leaders to assure that our APPs are present on multi-disciplinary care teams, providing care for our patients and their families and functioning at the top of their licenses. She also provides leadership, strategic planning, and vision for Advanced Practice Providers.

Send your questions about Advanced Practice Provider opportunities to her at

APPs provide direct-patient care in the listed UI Health Care specialties. The following individuals serve as the APP Leads for the APPs in each department/division.

  • Anesthesia - Ann Smith, ARNP, CRNA
    • Anesthesia Presurgical Evaluation Clinic (APEC) - Christine McNair, ARNP, CRNA
    • Ambulatory Surgery Center (ASC) - Kathleen Fear, ARNP, CRNA
    • Critical Care - Staci Vaske, PA-C
  • Dermatology - Michael Elliott PA-C
  • Emergency Medicine - Dave Walz, PA-C
  • Family Medicine - Leslie Veit, PA-C
  • Internal Medicine
    • Hospitalists - Shelly McGurk, ARNP, AGNP-AC
    • Critical Care - Allison Wynes, ARNP, ACNP-BC
    • Hematology-Oncology - Michele Freesmeier, PA-C
  • Neurology/Neurosurgery - Erin Rindels, MSN, RN, CNRN, SCRN, NVRN-BC
  • Obstetrics and Gynecology - Rachel Maassen, MD, MBA
  • Orthopedics and Sports Medicine - Mary Greve, PA-C
  • Otolaryngology - Grant Worthington, administrator 
  • Pediatrics - Melissa Whisler, administrator
    • Neonatal Intensive Care Unit (NICU) - Denise Holida, ARNP, NNP, PNP
    • Pediatric Intensive Care Unit (PICU) - Jodi Bloxham, DNP, ARNP, PNP-AC
  • Psychiatry - Colleen Brems, ARNP, CNS
  • Radiation Oncology - Jana Grienke, administrator
  • Radiology - Tyler Artz, administrator
  • Surgery - Peggy Guither, ARNP, ACNP-AG, FNP
    • Cardiothoracic Surgery - Melissa Tvedte, ARNP, FNP
  • Urology - Erica Brown, ARNP, ANP
  • UI Community Clinics/UI QuickCare - Angela Schadler, ARNP, and Rob Linnell, PA-C