HMO workers are healthcare professionals who work in Health Maintenance Organizations (HMOs). HMOs are organizations that provide comprehensive health care services to members. The four crossword solutions for the term HMO workers are DOCS (4 letters), DRS (3 letters), MDS (3 letters), and RNS (3 letters). DOCS stands for Doctors of Osteopathic Medicine, DRS stands for Doctors of Medicine, MDS stands for Medical Doctors, and RNS stands for Registered Nurses. All of these professionals are essential to providing quality healthcare services to HMO members.