Our growing presence
We serve over 17.5 million patients across the country.
How to use the map
- Select a care category below to turn visibility on and off.
- Choose a state within the map to learn more about what OptumCare services are offered.
- Sort medical group and networks by region below the map.
- Choose a specific medical group or network to learn more about the organization and the care they offer.
Health referral regions, or HRRs, are regional health care markets. They’re grouped by ZIP code according to where the greatest proportion of Medicare patient referral and treatment exists.
Care categories identified by Health Referral Regions. Updated: November 2019