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Guardian (The Guardian Life Insurance Company of America) is a group-benefits carrier whose dental network counts 130,000+ providers (company-reported). Its distinctive structural fact: Guardian owns Avesis, a government-programs administrator. So a group may encounter Guardian twice, as a commercial carrier and behind a Medicaid MCO’s dental benefit. Payer portals, forms, IDs, and procedures change frequently. Timely-filing limits and other participation terms come from the applicable current payer materials and your executed agreement. Use this page as a starting point, then verify the product, entity, provider, location, and effective date with the payer.

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Who they are

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Networks

The Avesis point matters operationally: participation in Guardian’s commercial DPPO does not put you in an Avesis Medicaid network, and vice versa. Each is its own enrollment.

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Enrollment and credentialing

  • Commercial dental participation starts from guardianlife.com/dental-insurance and Guardian’s provider channels.1
  • Avesis provider enrollment runs separately at myavesis.com/providers. When Avesis subcontracts for a medical MCO, use the applicable MCO provider manual, such as the Humana-CareSource Kentucky Medicaid manual.2
  • Keep CAQH current. See Set up CAQH.

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Billing notes

  • Standard 837D/ADA claim form workflow for commercial claims; confirm payer IDs with your clearinghouse.
  • Avesis claims follow the Avesis (or host MCO) portal, fee schedule, and preauthorization rules; Medicaid dental mechanics, not commercial ones. See Enroll in Medicaid.
  • Timely filing is contract-specific. Verify against your executed agreement.

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Sources

  1. Guardian, dental insurance (company-reported network size).
  2. Employee Benefit News, Guardian boosts vision, dental business with Avesis buy; Avesis, providers; Humana-CareSource Kentucky Medicaid Avesis provider manual.
Last modified on August 21, 2026