A code such as H5577 is not enough to identify one person's Medicare Advantage benefits. Medicare distinguishes the contract, the individual plan and, where applicable, a segment. The benefit year and service area also matter.
What you need for a reliable lookup
| Detail | Purpose |
|---|---|
| Contract number | Identifies the Medicare contract. |
| Plan number | Identifies an offering within that contract. |
| Segment, if applicable | Further identifies the applicable offering. |
| Year and residence | Connects the search to current local coverage. |
Searching H5577, H6622 or H4909
Each of these searches needs the additional plan details. Do not interpret a page headed with only one of these codes as proof of a particular premium, dental allowance or provider network. An older listing may describe a different year or an offering that changed.
Find the complete identifier on your plan documents or ask member services. If comparing new coverage, enter your residence in Medicare's plan comparison tool and select the intended year.
Match the documents before comparing benefits
The Summary of Benefits is a starting comparison; the Evidence of Coverage explains the contract's detailed services, costs and rules. Verify that both refer to the same plan and year. Do not combine a premium from one offering with benefits from another.
- Confirm doctors, facilities and practice locations.
- Compare medical cost sharing and the annual limit.
- Check referrals, authorization and out-of-network rules.
- Verify optional benefits and their limits separately.
Before an enrollment or claim
Ask for written confirmation of the plan and effective date. A code search is not an enrollment confirmation or a coverage decision. Existing members should contact their plan for service-specific questions and keep reference numbers. Share Medicare identifiers only through verified, secure channels.
Related coverage questions
- Medicare Advantage: Eligibility, Benefits and Plan Rules
- Medicare Advantage Costs: Premiums, Copays and Spending Limits
- How to Verify Your Medicare Coverage and Plan Enrollment