Your Doctors & Care Team

Your Doctors & Care Team

Patients receive leading-edge care when primary care physicians, specialists, and other health care professionals work together to provide coordinated care. Teamwork at Confluence Health is built through recognition of the contribution that each member of our staff makes to a patient's experience and outcome. Confluence Health is committed to the physician-patient relationship. Health care is most effective when patients, their families, and physicians mutually determine the course of action.

Providers at Confluence Health

Thomas Carlson, MD

Dr. Carlson is a radiation oncologist, certified by the American Board of Radiology. He received a Medical Doctorate degree from the University of Arizona College of Medicine in Tucson after earning a Bachelor of Science degree in Aeronautical Engineering.

Mitchell Garrison, MD

Dr. Garrison's experiences as a youth working with impoverished people in Tiajuana, Mexico and on the Navajo Indian Reservation in Arizona are what led him to the medical field. He wants to help people with significant needs.

Anna Hansen, MD

Dr. Hansen cares for patients in the Breast Imaging Center at Confluence Health.

Darren Hess, MD, PhD

Dr. Hess is a general surgeon who is interested in surgery for cancer of the colon and rectum, breast, thyroid, skin, and other sites.

Jennifer Jorgensen, MD, FACP

Dr. Jorgensen has a special interest in therapeutic endoscopy, endoscopic ultrasound, ERCP, and pancreaticobiliary diseases. 

Katie Kemble, DNP, FNP-C, AOCNP

Katie Kemble is an advanced registered nurse practitioner whose specializes in caring for oncology patients. She also travels to Omak, in Okanogan County, and provides outreach oncology services.

Stephen Knox, MD

Dr. Knox is a clinical assistant professor with the University of Washington School of Medicine and sees patients at Confluence Health.

Jason Loewen, MD

Dr. Loewen is a thoracic surgeon and is interested in esophageal/reflux surgery and access surgery for spinal fusion.

Jeffrey Monson, MD

Dr. Monson is a surgical oncologist who specializes in gastrointestinal and colorectal surgery.

Lindsay Overton, MD

Dr. Overton provides hematology and medical oncology care at Confluence Health.

John Register, MD

Dr. Register is the director of radiation oncology for Confluence Health.

Mandy Robertson, MD

Dr. Robertson provides hematology and oncology care at Confluence Health.

Kathy Schweitzer, RN

Kathy Schweitzer, Oncology Nurse Navigator, guides patients in the oncology treatment journey.

Julie Smith, MD

Dr. Smith is most interested in malignant and non-malignant hematology, solid tumor oncology, and iron metabolism.

Linda Strand, MD

Dr. Strand is board certified in diagnostic radiology and is especially interested in women’s imagining with an emphasis in mammography and image-guided breast biopsy.

Catherine Straub, MD

Dr. Straub is a general surgeon with a special interest in surgical oncology, pancreatic surgery, and laparoscopic surgery.

Thomas Tucker, MD

Dr. Tucker is a specialist in oncology and hematology at Confluence Health.

Kelli Van Wagner, RN, OCN

Kelli Van Wagner, Oncology Nurse Navigator, guides patients in the oncology treatment journey.