MARK G GREENWELL MD is categorized under PHYSICIANS & SURGEONS specializing in FAMILY PRACTICE and located at 526 W Genesee St. Ste. 3 in or near the Frankenmuth, MI area. Find additional information including website, e-mail, map, and directions - OriginalYP.com®. Find additional PHYSICIANS & SURGEONS at MedicalYP.com ®.