Teresa M Schaer, M.d., Facp, Llc is a Internal Medicine Geriatric Medicine specialty provider based out of Somerset, New Jersey. The NPI number for Teresa M Schaer, M.d., Facp, Llc is 1649426107.Based on a NPI lookup from the NPI registry (NPPES), this provider holds a license number 25MA04982600 (New Jersey)..