Dr. Masonholder is on Doximity
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Office
109 E Walnut St
Columbus Junction, IA 52738Phone+1 319-728-2429Fax+1 319-728-7600
Education & Training
- Des Moines University College of Osteopathic MedicineClass of 1979
Certifications & Licensure
- IA State License 1980 - 2020
Professional Memberships
- Member
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