Start with the responsible source

Understand enrollment periods, coverage choices, costs, provider networks, appeals, and programs that may reduce Medicare expenses. The resources below are starting points for verification, applications, complaints, provider searches, and local referrals.

Where to begin

  • Use Medicare.gov for official coverage, plan comparison, publications, and contact information.
  • Use Medicaid.gov and the state Medicaid agency for state-specific eligibility and coverage.
  • Use the SHIP locator for free, local Medicare counseling.
  • Use CMS Care Compare to review participating providers and quality information.

Official and established resources

  • Medicare.gov — official or established source for current details.
  • Medicaid.gov — official or established source for current details.
  • SHIP Help — official or established source for current details.
  • CMS Care Compare — official or established source for current details.

Prepare before calling or applying

  • Write the exact question and desired outcome.
  • Have the relevant card, notice, bill, account number, dates, and ZIP code available—but do not send sensitive information to an unverified contact.
  • Ask whether the office serves the correct county, plan, provider type, or legal issue.
  • Ask what documents are required and whether an appointment is necessary.
  • Record the representative’s name, date, confirmation number, and next step.
  • Request an accessible format, interpreter, relay service, or reasonable accommodation when needed.

Verify the organization

Use the official web address or a phone number printed on an official notice. Commercial advertisements and lead-generation forms can appear above government results in search engines. Confirm the domain before entering personal information.

More pages

Within this subject: Updates and Official Changes, Decision Checklist, Common Mistakes and Warning Signs, State-by-State Differences.

Related subjects: Social Security, SSI, SSDI, Pensions, and Income Benefits, Prescription Costs, Safety, Shortages, and Recalls, Medical Bills, Debt, Appeals, and Financial Assistance.

Last reviewed

Resource links and descriptions were reviewed on 2026-07-30. Program capacity, hours, and local availability still require direct confirmation.