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Learn about our networks

Your employees have access to the largest PPO provider network in California, plus a range of HMO network options. Learn more

Explore the Trio HMO network

Trio HMO plans are designed to give your employees an affordable way to access a high-quality network of providers.

The doctors and hospitals within this specially selected network are committed to working more closely together. This ensures all aspects of care are more connected and efficient – keeping premiums as low as possible in the process.

Visit to search for doctors, hospitals, specialists, and more within the Trio network.

Not sure if Trio plans are available in your area? Use our Trio ZIP code tool.

Find a doctor

Search Blue Shield of California’s extensive provider network. Search now