The St. John satellite facility was built in 1994 to serve the growing population in southern Lake County. It offers the same high level of quality care provided at the Hammond Clinic Specialty Center.

* Dermatology
* Family Practice
* Internal Medicine
* Obstetrics-Gynecology (OB/GYN)
* Occupational Health Services
* Pediatrics
* Podiatry
* Radiology

Hammond Clinic - St. John Physicians

* Cosgrove, Patrick, D.O., Family Practice
* DeSchepper, David A., M.D., Family Practice
* Gordon, Mark, M.D., Dermatology
* Kaminsky, Kristi M., D.P.M., Podiatry
* Kinne, Mark, M.D., Pediatrics
* Lackey, Vicki Carew, MS, RN, CS, FNP, Dermatology
* Majmudar, Deepak, M.D., Obstetrics-Gynecology (OB/GYN)
* Ololade, Omiyosoye Adebowale, M.D., Pediatrics
* Ostrowski, Michele, M.D., Internal Medicine
* Rhodes, Elisa, MS, APRN-BC, Occupational Health Services
* Wong, Jean Seit, M.D., Family Practice