Areas of expertise for Dr. Lumsden include amputation, total shoulder replacement, and tumor. He is professionally affiliated with ThedaCare. Before performing his residency at a hospital affiliated with the University of South Alabama and a hospital affiliated with the University of Wisconsin, Dr. Lumsden attended Northwestern University, Feinberg School of Medicine. He accepts Humana HMO, Humana Bronze, and Humana Catastrophic, in addition to other insurance carriers.