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Cambridge Medical Center


Medical staff officers

Steven Jensen, MD
Chief of Staff

  • Education: University of Wisconsin School of Medicine and Public Health
  • Experience: Board Certified Radiologist

Charles Phillips, MD
Vice President of Medical Affairs

  • Education: University of Minnesota School of Medicine
  • Certification: American Board of Family Practice
  • Clinical interests: Previous Chief of Staff, primary care dept lead

Amy L. Haupert, MD
Clinic Medical Director

  • Education: University of South Dakota School of Medicine and Health Sciences
  • Certification: American Board of Family Practice
  • Clinical interests: Women's health

Mark Thayer, MD
District Medical Director

  • Education: University of Minnesota Medical School
  • Experience: Present Medical Director Emergency Medical Services (Emergency Department & Occupational Medicine); Started Urgent Care, Medical Director; Emergency Medical Consultant of Isanti County, MN
  • Clinical interests: Acute Care Medicine, General Surgery, Emergency Medicine, Trauma: Biochemistry, Biology


Gary Shaw

  • Education: Bachelor of Arts in Healthcare Management, Southern Illinois University; Masters in operations management, University of Arkansas
  • Experience: More than 25 years healthcare leadership experience. Previously, administrator of the Alaska Native Medical Center in Anchorage, Alaska, a 150-bed Level II trauma center; Vice President Operations, Bayhealth Medical Center, Delaware; Chief Executive Officer Billings Clinic/North Big Horn Hospital, Lovell, Wyoming; navy corpsman, naval officer and administrator of naval hospitals in Florida and Tennessee

Mari Holt, RN, MSN, MBA, NE-BE
Patient Care Services Director