Marianne Christensen, ARNP

Kayla Promes, ARNP joined The Iowa Clinic Hematology Oncology department with a passion for providing compassionate, patient-centered cancer care. Since beginning her career, she has dedicated herself to oncology, working as a nurse in renowned institutions such as Standford, Cedars-Sinai, and Georgetown. She chose The Iowa Clinic for its seamless collaboration across specialties, ensuring patients receive comprehensive, well-coordinated treatment.

Ryan Mertens, DO, joined The Iowa Clinic in 2022 because he loves the passion fellow providers and staff have for the Clinic and patient care. Dr. Mertens practiced independently in primary care before returning to fellowship training in Pulmonology at Creighton University. He chose this specialty because of its many modalities. Between the clinic, hospital, and ICU, it provides him with numerous opportunities for patient care. Difficulties with breathing can be a very anxiety provoking and traumatic experience and he finds helping patients in these specific situations to be very gratifying.