Cancer Care
St. Luke's Mountain States Tumor Institute
Nurse Practitioners
Highly trained nurse practitioners are an important part of St. Luke's MSTI's care team. The nurse practitioners at St. Luke's MSTI are registered nurses with advanced academic and clinical experience, which enables them to help with the diagnosis and management of our patients' illnesses. Working in collaboration with St. Luke's MSTI physicians, our nurse practitioners help provide the expert care for which St. Luke's MSTI is known.
Medical Oncology
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Dorene Boydston, RN, MSN, NP-C, earned her master of science in nursing and her adult nurse practitioner degree from the University of San Diego. She is nationally certified as an adult nurse practitioner by the American Academy of Nurse Practitioners, and is a member of the Oncology Nursing Society. |
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Kathleen Clifford, RN, MSN, C-FNP, AOCN, earned her master of science in nursing and family nurse practitioner from the University of California, San Francisco. She is nationally certified as an advanced oncology certified nurse practitioner by the Oncology Nursing Society and as a family practice nurse practitioner by the American Nursing Credentialing Center. She is currently the St. Luke’s Blood and Marrow Transplant Program coordinator. |
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Linda L. Erlandson, RN, MSN, FNP, earned her master of science in nursing from Vanderbilt University in Nashville, Tennessee. She is nationally certified as a family practice nurse practitioner by the American Nursing Credentialing Center. She is a member of the Oncology Nursing Society. |
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Brittany Linn, RN, MSN, NP-C, earned a master of science in nursing as a family nurse practitioner from Idaho State University. She is certified through the Oncology Nursing Society as a chemotherapy and biotherapy provider, and is currently pursuing credentialing as an advanced oncology certified nurse practitioner. She is board certified through the American Academy of Nurse Practitioners. |
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Cheryl L. Mills, RN, MSN, FNP, AOCNP, earned her bachelor’s degree in nursing from Boise State University and her master of science in nursing from Idaho State University. She is nationally certified as an advanced oncology certified nurse practitioner by the Oncology Nursing Society and as a family practice nurse practitioner by the American Nursing Credentialing Center. |
Pediatric Oncology
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Marni Allen, RN, MS, FNP-BC, is a nurse practitioner in the pediatric hematology/oncology department. She graduated from Linfield College with her undergraduate nursing degree and from the University of Portland with her master of science in nursing. She is board certified as a family nurse practitioner. |
Radiation Oncology
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Colleen Lambertz, RN, MBA, MSN, FNP, graduated from South Dakota State University with a bachelor of science in nursing. She earned a master of business administration from Boise State University and a master of science in nursing/family nurse practitioner from Gonzaga University in Spokane, Washington. She is board certified through the American Academy of Nurse Practitioners. |
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Jerrimi Helmick, RN, MN, FNP-C, graduated from Treasure Valley Community College with an associate degree in nursing. She earned her master of nursing degree from Oregon Health and Science University’s Family Nurse Practitioner program. She is board certified through the American Academy of Nurse Practitioners, and is a member of the Oncology Nursing Society. |








