Physicians & Surgeons in Ottoville, OH Knerr Joel MD290 E 3rd StOttoville, OH, 458764194533321Doctors OfficeDoctors OfficesDr Gresla E MailFamily PhysicianFamily PhysiciansMedical DoctorsPhysicians Surgeons Knerr Joel MDPO Box 249Ottoville, OH, 458764194533321DoctorDoctors OfficeDoctors OfficesFamily DoctorFamily Doctors OfficesFamily PhysiciansMedicaid DoctorsMedicalPhysicians Surgeons Show More