DR DANIEL L CLARK D O is categorized under PHYSICIANS & SURGEONS specializing in FAMILY PRACTICE and located at 14831 W 159th St. Ste. 2 in or near the Lockport, IL area. Find additional information including website, e-mail, map, and directions - doctors.advocatehealth.com. Find additional PHYSICIANS & SURGEONS at MedicalYP.com ®.