Department of Primary Care 304 Main StreetCaldwell, Ohio Call (740) 732-2339 Get Directions Meet the Team John J. Biedenbach, NP Nurse Practitioner, Family Nicholas V. DiMassa, DPM Podiatry Brittany R. Marlow, NP Nurse Practitioner, Family Mark C. Plumby, MD Orthopaedic Surgery, Sports Medicine Clayton Spencer, DO Family Medicine Robert A. Spencer, DO Family Medicine View More John J. Biedenbach, NP Nurse Practitioner, Family Learn more Nicholas V. DiMassa, DPM Podiatry Learn more Brittany R. Marlow, NP Nurse Practitioner, Family Learn more Mark C. Plumby, MD Orthopaedic Surgery, Sports Medicine Learn more Clayton Spencer, DO Family Medicine Learn more Robert A. Spencer, DO Family Medicine Learn more View More