The Mathers Clinic is a team of professionals who offer psychiatric diagnosis, treatment and medication management services to all those suffering from and affected by mental concerns. All our clinicians offer both in-person and telehealth appointments, so you get the care you need in the format that serves you best.Mathers' Clinic Staff - Crystal Lake Office‧Mathers' Clinic Staff - Rockford Office‧New Patient Forms‧Office Locations‧ABOUT US‧OUR SERVICES.