Highpoint Health with Ascension Saint Thomas - Winchester, TN Job Type: Certified Medical Assistant (CMA) - PRN Days Schedule: 4 Shifts A Month | 12-Hour Shifts | Rotating Weekends Your Experience Matters Highpoint Health Winchester with Ascension Saint Thomas is part, a diversified healthcare delivery network with facilities coast to coast. We are driven by a profound commitment to prioritize your well-being so you can provide exceptional care to others.