Primary Office Office 1: Baptist Primary Care 45465 5th Avenue , Callahan, FL 32011 904.879.4544 904.879.4411 Phone & Fax Directory Main: 904.879.4544 Fax: 904.879.4411 Emergencies: 911 Office Hours Monday 8:00 AM - 5:00 PM Tuesday 8:00 AM - 5:00 PM Wednesday 8:00 AM - 5:00 PM Thursday 8:00 AM - 5:00 PM Friday 8:00 AM - 5:00 PM Providers at This Location Mark Brinkman, DO Family Physician Barbara Bayko, PA-C Physician Assistant Garrett Cudmore, DO Family Physician