FLINT — Chelsea Smith, DO, a general surgeon, and Justin Schupbach, MD, orthopedic surgeon and sports medicine specialist, have joined the medical staff at McLaren Flint.. Smith is seeing patients at the McLaren Bariatric and Metabolic Institute, G-3200 Beecher Rd., Suite MBI, in Flint. She is also seeing patients at 3273 Davison Rd., Suite 4, in Lapeer..