Laena M Karnstedt, MD is a medicare enrolled "Internal Medicine" physician in Cumming, Georgia. Her current practice location is 106 Pilgrim Village Dr, Suite 400, Cumming, Georgia.You can reach out to her office (for appointments etc.) via phone at (678) 455-0030. Laena M Karnstedt is licensed to practice in Georgia (license number 41147) and she also participates in the medicare program..