551 Linn Street, Allegan, MI 49010 (269) 686-5800 Clinic Hours: Monday - Friday, 8 a.m. - 5 p.m. Click here for a list of services provided. Click here to sign up for Allegan Clinic's patient portal. If you already are registered, click here to log in. Orthopedic & Sports Medicine 551 Linn Street, Suite 220, Allegan, MI 49010 (269) 673-5571.