Asthma & Allergy - Mercy Medical Group - Citrus Heights, CA is a medical center that offers many services, including allergy and asthma treatment, allergy treatment for children and adults, and food allergies. Visit Asthma & Allergy - Mercy Medical Group - Citrus Heights, CA located at 7115 Greenback Ln, Citrus Heights, CA. This Citrus Heights medical center is one of the best in California. As part of the Dignity Health network, Asthma & Allergy - Mercy Medical Group - Citrus Heights, CA is dedicated to delivering high quality, compassionate care and access to Citrus Heights and nearby communities.