777 Hospital Way, Pocatello, ID 83201 | (208) 239-1000

Portneuf Cancer Center

Physician Team

We Go the Extra Mile for You

Led by specialized physicians, our care team develops individualized treatment plans based on each patient's particular needs. At Portneuf Cancer Center we fight cancer every day. We know your health history; we know your treatment plan; we know you. We pledge to you our dedication to providing the best treatment possible for your cancer.

Portneuf Cancer Center's physicians are certified by the American Board of Radiology in Radiation Oncology or the American Board of Internal Medicine in Medical Oncology, Hematology and Internal Medicine, and are leaders in their field.

Our physician team includes two medical oncologists and two radiation oncologists. They combine their individual skills to offer an evidence-based approach for advancing the knowledge and treatment of cancer.

We invite you to meet our physicians. They direct and lead patient care as well as collaborate with surgeons, licensed oncology nurses, and other team members to ensure the highest quality care and treatment for your cancer.

Michael T Callaghan, MD

Michael T Callaghan, MD

Dr. Michael Callaghan, a native of Butte, Montana, was raised in and around the Intermountain West. As an undergraduate he attended Westminster College in Salt Lake City, majoring in biology. While at Westminster, he played on the varsity soccer team. He graduated from the University of Utah Medical School, which was followed by a residency in radiation oncology at the Indiana University Medical Center in Indianapolis. Dr. Callaghan established his practice in Pocatello in 1997.

He is board-certified in radiation oncology and is president of Intermountain Radiation Oncology. He is married to Dr. Cheryl Callaghan, a Pocatello gynecologist. The Callaghan’s have two children. He is a dedicated family man that enjoys outdoor recreations, including fishing and hiking, as well as being involved in the activities of his children.

Dr. Callaghan is the past Chief of Medical Staff of Portneuf Medical Center where he worked successfully with his colleagues to redesign the quality and credentialing processes. Dr. Callaghan is an advocate of a collaborative approach to the practice of medicine; one that embraces the participation of physicians, support staff, and facilities in optimizing the care of the patient.

Specialties & Interests

Board Certified: Radiation Oncology

Education & Training
  • Residency: Indiana University Hospitals , 1997
  • Internship: Indiana University Hospitals , 1994
  • Medical School: University Of Utah School Of Medicine , 1993
Steven J Todd, MD

Steven J Todd, MD

Dr. Steven Todd is a radiation oncologist who has joined Intermountain Radiation Oncology and is practicing with Drs. Michael Callaghan and Calvin McAlister. He received his medical degree from the University of Utah School Of Medicine and did his family practice internship at the University of North Dakota Family Practice Center. Dr. Todd completed radiation oncology training at Loma Linda University in Loma Linda, California. He and his family moved to Southeast Idaho from Helena, Montana where he worked at the St. Peter’s Hospital Cancer Treatment Center. Dr. Todd sees patients at both the Portneuf Cancer Center in Pocatello and the Cancer Center in Idaho Falls. Dr. Todd has a rather unique hobby in that he is an amateur rocketeer. He can often be found, weather permitting, blasting rockets into the heavens near the Dillon, Montana area.

Specialties & Interests

Board Certified: Radiation Oncology

Education & Training
  • Residency: Loma Linda University Med Ctr , 2001
  • Internship: University of North Dakota Family Practice Center , 1997
  • Medical School: University Of Utah School Of Medicine , 1996
Michael L Francisco, MD

Michael L Francisco, MD

Dr. Michael Francisco, a native of the East Coast, predominately the New York region, came to Pocatello in the early 90’s when he joined the Pocatello Clinic of Internal Medicine. He established a full-time practice with the Portneuf Cancer Center in January 2005.

Dr. Francisco completed undergraduate studies at State University of New York at Potsdam, NY, majoring in biology. He attended medical school at the University of Liege in Belgium. This was followed by an internal medicine residency at Bridgeport Hospital in Bridgeport, Connecticut. Dr. Francisco was a fellow in hematology and oncology at the University of Massachusetts Medical Center, Worcester, Mass. prior to his moving to Pocatello.

Dr. Francisco is board-certified in internal medicine, hematology, and oncology. From 1995-1996 he served as the Chief of Medicine for Bannock Regional Medical Center. He was the Medical Director of the Portneuf Cancer Center in 2007.

Dr. Francisco, his wife, and two children are an avid outdoor family that enjoys tennis, skiing, and gardening. One of Dr. Francisco’s real passions in life are his dogs. He raises St. Bernards in addition to owning a loving pet Dachshund.

Specialties & Interests

Board Certified: Medical Oncology

Oncology

Education & Training
  • Fellowship: Univ of Massachusetts Hospital , 1992
  • Residency: Bridgeport Hospital , 1989
  • Internship: Mt. Vernon Hospital , 1987
  • Medical School: University of Liege , 1985
David W Ririe, MD

David W Ririe, MD

Dr. David W. Ririe is originally from Salinas, California. He is married to Mary Ellen with 4 children. After graduating from Brigham Young University in 1985, Dr. Ririe entered active duty military service by attending the Uniformed Services University of the Health Sciences (USUHS). He earned his medical degree from USUHS in 1989. He did internal medicine training at Wright-Patterson Air Force Base in Dayton, Ohio, followed by a fellowship in hematology and medical oncology at Wilford Hall Medical Center in San Antonio, Texas. He remained in San Antonio until his retirement from the US Air Force in 2010.

While in San Antonio, Dr. Ririe led the stem cell transplant service for over 10 years. At the time of his retirement, he was serving as chief of the hematology and medical oncology service at the Air Force's medical center in San Antonio. Additionally, he served as chief of the medical staff on two separate tours at the largest DoD hospital in Iraq in 2005 and again in 2008. Dr. Ririe has particular interests in leukemia, lymphoma and myeloma. However, his practice at Portneuf includes all areas of hematology and medical oncology.

Dr. Ririe enjoys the outdoors and exercise of all kinds. He considers eastern Idaho a "home away from home" because of many family relations that reside in the area.

Specialties & Interests

Board Certified: Hematology, Medical Oncology

Oncology

Education & Training
  • Fellowship: Wilford Hall USAF Medical Center , 1996
  • Fellowship: Fred Hutchinson Cancer Research Center , 1996
  • Residency: Wright-Patterson AFB , 1992
  • Medical School: United Services University of the Health Sciences (USUHS) , 1989
Jennifer L Robinson, PA-C

Jennifer L Robinson, PA-C

Jennifer has worked in Portneuf’s Cancer Center since 2002 as a nationally certified Physician Assistant. She spent seven years working in the Radiation Oncology department before transitioning to the Hematology/Medical Oncology department. As a physician assistant, her duties include meeting with established patients, ordering and interpreting lab or radiologic tests, and prescribing medications including chemotherapy all with physician oversight. She works closely with the other members of the health care team within Portneuf Cancer Center.

Jennifer also co-facilitates the HOPE Cancer Survivor Support Group. In addition to her work with cancer patients, she coordinates the Portneuf Tobacco Cessation Clinic, which provides individualized treatment to those who wish to quit smoking or chewing.

Jennifer received her undergraduate training at ISU, earning a BS in Health Education. She then completed the ISU PA program in 2002. She went on to complete her Master’s in Physician Assistant Studies through Oregon Health Science University in 2007. She resides with her family in Chubbuck.

Carol J Milder, NP

Carol J Milder, NP

Carol Milder is a certified Family Nurse Practitioner. As an advanced practice nurse, she is actively involved in the assessment and treatment of patients here at the Cancer Center. Her role includes assisting patients and families in understanding and navigating their cancer care through extensive education and support. She sees patients currently on treatment, along with those in follow-up. An oncology/hematology practitioner, she received her undergraduate Bachelor of Science degree in Nursing from The University of Iowa in 1985, and her Master of Science degree in Nursing from Idaho State University in 1997. She holds certification as an Oncology Clinical Nurse. Carol has lived in Pocatello for the last 16 years. Married for more than 25 years, her husband is employed at Idaho State University. Together they have two daughters currently attending college.