Heartland Primary Care is the best healthcare clinic with the best physicians in Lenexa! Sunflower Medical Group/Heartland Primary Care is a great neighborhood health care clinic. Whether it be Internal Medicine to Pediatrics, the doctors look after Lenexa patients young and old. Specializing in prevention, detection and treatment of minor medical problems. We cover routine care (physicals, well-child check-ups, routine immunizations, etc).Prevention is the best medicine and we want to be here for you and your family.