Skip to navigation Skip to Content


Search Marshfield Clinic Health System
Join a world-class health system. Find jobs

“I’m most passionate about making a difference for my patients and keeping them doing what they love to do.”

Provider Bio down arrow

​After high school, Dr. Corey Cronrath enlisted in the Marine Corps, and learned the importance of discipline and service. When he returned to college, he joined the North Dakota National Guard as a combat medic.

“I picked combat medic based off of timeframe. It was over the summer and I thought it sounded interesting,” he said. “And that’s how I found my first love, medicine.”

Once he was in medical school, Dr. Cronrath took a scholarship with the Army. While deployed in Afghanistan as a flight surgeon, he learned more about his true passion for occupational health.

“Work is a community itself,” Dr. Cronrath said. “It’s a sense of belonging and if we keep you out of work, then your chance of returning is less. If you don’t return to work, your quality of life over the next 20-30 years suffers.”

Dr. Cronrath and his Occupational Health team complete a myriad of services including pre-placement exams, work place injury visits and commercial driver medical certificates.

“If you do get injured at work, the team’s main goal is to keep you at work at a capacity that won’t cause any more progression to the injury,” he said.

Dr. Cronrath received his doctoral degree in 2011 from Midwestern University in Downer’s Grove, Illinois. He completed his residency in occupational medicine in 2015 from the United States Army School of Aviation Medicine in Fort Rucker, Alabama. Then completed his residency in aerospace medicine the following year at Naval Aerospace Medical Institute in Pensacola, Florida. He is board certified in occupational medicine.

Outside of work, Dr. Cronrath spends time with his four kids and wife, Chandra. He enjoys staying physically fit and playing basketball.

Professional Summary down arrow

  • Medical School
    Midwestern University Downers Grove, IL, United States, D.O. 2011

    United States Army - School of Aviation Medicine Fort Rucker, AL, United States Occupational Medicine 2015

    Naval Aerospace Medical Institute Pensacola, FL, United States Aerospace Medicine 2016

  • Board Certifications
    Aerospace Medicine: 2020 Occupational Medicine: 2016

    State Licenses

Honor a Shining Star

Shining Star Logo

Honor a provider or care team member who makes a difference in your care with a gift through the Shining Star program.