In 2017 (from https://www.cms.gov/Research-Statistics-Data-and-Systems/Statistics-Trends-and-Reports/NationalHealthExpendData/NationalHealthAccountsHistorical.h

In 2017 (from https://www.cms.gov/Research-Statistics-Data-and-Systems/Statistics-Trends-and-Reports/NationalHealthExpendData/NationalHealthAccountsHistorical.html https://www.cms.gov/Research-Statistics-Data-and-Systems/Sta...):  Hospital Care (33 percent share)  Physician and Clinical Services (20 percent share)  Retail Prescription Drugs (10 percent share)  Other Health, Residential, and Personal Care Services (5 percent share)  Nursing Care Facilities and Continuing Care Retirement Communities (5 percent share)  Dental Services (4 percent share)  Home Health Care (3 percent share)  Other Professional Services (3 percent share)  Other Non-durable Medical Products (2 percent share)  Durable Medical Equipment (2 percent share)