Construction continues at Thedacare Medical Center-Oshkosh

July 28, 2025

OSHKOSH – After breaking ground in 2024, construction progress is on track at the new ThedaCare health campus in Oshkosh, located at 250 W. 6th Ave. 

Lynn Detterman – north region president, Froedtert ThedaCare Health – said ThedaCare developed plans for the site after research identified additional services were needed for the community.

“As we were planning, we found that nearly 73% of Oshkosh’s residents live east of Interstate 41, while most of the current healthcare services are located west,” he said. “That means those living on the east side of the Oshkosh area are more than 15 minutes away from a hospital or emergency room. We know that during emergencies, time is critical. That is what led us to create the campus at the current site – to meet people where they are.”

Some of the major construction milestones thus far, Detterman said, include:

• Flooring installation has started
• First coats of paint have been applied
• Vinyl wallcovering within the hospital is underway
• Exterior glass at the hospital is complete
• Asphalt paving is taking place
• Landscaping has begun
• Concrete curbs are complete, and site sidewalks are nearing completion

The Oshkosh health campus is expected to be complete in late 2025.

Detterman said ThedaCare Medical Center-Oshkosh will provide comprehensive, 24-hour, emergent and inpatient care.

Hospital plans also call for comprehensive radiology services including CT scans, X-ray, ultrasound, mammography, MRI, nuclear medicine, cardiac stress testing, echocardiography and lab services.

Also included in plans are a drive-thru retail pharmacy, ambulatory surgery center with operating rooms and a medical office building for primary care, pediatrics and specialties.

When complete, he said it is projected to be approximately 114,000 square feet, with an estimated $84 million investment.

“The new campus also rounds out clinical care we have been providing the Oshkosh community for years, including cancer care, behavioral health, urgent care, orthopedics, physical therapy, primary care, pediatrics and more,” Jenny Nikolai – MBA, FACHE, PMP, vice president of ThedaCare Medical Centers-Fond du Lac and Oshkosh – said. “This site will allow our teams to continue caring for the people in the Oshkosh area and provide the level of expertise they deserve.”

To adapt to the changing needs of the community, Detterman said ThedaCare updated plans for the health campus and added a 28,000-square-foot third floor to the original design. 

More services, he said, may be added over time based on community need.