Typical departments in a US hospital include:
Emergency Department
Intensive Care Unit (ICU)
Operating Room (OR)
Medical-Surgical Unit
Obstetrics and Gynecology (OB/GYN)
Pediatrics
Radiology
Laboratory
Pharmacy
Physical Therapy
Administration
Finance
Human Resources
Information Technology (IT)
Marketing and Communications.
The specific departments and services offered may vary depending on the size, location, and focus of the hospital. Some hospitals may also have specialized departments for cardiology, oncology, orthopedics, and other medical disciplines.