St. Mary's Hospital offers a wide variety of inpatient and outpatient health and wellness services specializing in cardiac, family birth, pediatrics, neuroscience, geriatrics, orthopedics, and emergency services.

[4] In 2016 St. Mary's adult Behavioral Health Unit, with room for twenty patients, was the largest adult inpatient behavioral health unit, in Dane County.

"Some of our most vulnerable people are having to leave the county because the bed availability is not there for them," said Journey Mental Health Center CEO Ronald Lampert.

That year the hospital announced a substantial expansion and renovation of its adult Behavioral Health Unit facilities.

[5] In 2019 St. Mary's – Madison was rated high performing in 6 adult procedures and conditions by U.S. News & World Report.