New Search Accepting new patients. Jack O. Hensold MD (406) 414-5070 Primary Specialties Hematology (Board Certified) Medical Oncology (Board Certified) Secondary Specialties Internal Medicine (Board Certified) AffiliationsBozeman Health Deaconess Hospital Bozeman Health Medical Group Primary Office Address: Bozeman Health Cancer Center 931 Highland Blvd., Suite 3130 HP 3 Purple Zone Bozeman, MT 59715 Hours: Monday-Friday 8:00 am-5:00 pm Recommend this Physician Featured Video Education Medical School: Rush Medical College of Rush University Medical Center, MD Residency: University of Wisconsin Hospital and Clinics, Internal Medicine Fellowship: Beth Israel Hospital, Harvard Medical School, Medical Oncology and Hematology Areas of Expertise Medical Oncology, Hematology, Internal Medicine Physician Bio Jack Hensold, MD, has been a provider at Bozeman Health Cancer Center since 2004. Board certified in hematology, medical oncology and internal medicine, Dr. Hensold completed medical school at Rush Medical College of Rush University Medical School in 1978. Following a residency in internal medicine at University of Wisconsin Hospital and Clinics in Madison, WI, he completed fellowship training in hematology and medical oncology at Beth Israel Hospital and Harvard Medical School in Boston. Dr. Hensold was an Instructor of Medicine at Harvard Medical School and a visiting scientist at Massachusetts Institute of Technology prior to joining Case Western University in Cleveland. There, he served as Associate Professor of Medicine and ran a research lab funded by grants from the National Institutes of Health, the American Cancer Society and the Veteran’s Administration. He became the director of the hematology and medical oncology fellowship program at Case Western, and served as the chair of the Scientific Review Board for the American Cancer Society in Ohio.