Freeport VA Clinic | VA Madison Health Care | Veterans Affairs

SSM Health is a nonprofit Catholic health system based in St. Louis, MO, serving Illinois, Missouri, Oklahoma, and Wisconsin. It operates hospitals, physician offices, outpatient and virtual care, home/hospice services, a transparent pharmacy benefit manager, an insurance arm, and an accountable care organization. It owns and has expanded through multiple acquisitions (e.g., Monroe Clinic & Hospital in 2018; Oklahoma Spine Hospital in 2026; SLUCare Physician Group in 2022). Headquarters: St. Louis. Founded 1872.

Summary: Diana McNulty, MD appears to be associated with Mercyhealth (Mercy Health System) in Freeport, Illinois. Mercyhealth is a multisite health system headquartered in Rockford, IL, with locations across Illinois and Wisconsin (including Freeport, Rockford, Crystal Lake, and Lake Geneva). The organization features a leadership team spanning radiology, nursing, case management, human resources, reimbursement, digital strategy, and other clinical/administrative roles. Mercyhealth has a history of acquisitions (e.g., FHN and Freeport Health Network) and has ongoing recruitment events (e.g., nursing/hiring activities in Freeport). For precise details about Dr. McNulty’s role, department, or affiliation within Mercyhealth Freeport, direct confirmation from Mercyhealth’s directory or MD staff listing is recommended.