Mr. Gregory James Niedzwiecki primarily specializes in Physician Assistant but also specializes in and Emergency Medical Technician, Intermediate. Mr. Gregory James Niedzwiecki's NPI Number is #1720305592 and has been listed in the NPI registry for 8 years. Mr. Gregory James Niedzwiecki's practice location is listed as: 1215 E Michigan Ave C/O Emergency Department Lansing, MI 48912-1811 and can be reached via phone at (517) 364-1000.