Health First Colorado is generally payer of last resort when other insurance is responsible, so primary coverage often must process first.

Write down every program and plan before scheduling
Start with Medicare Part A and Part B status, Original Medicare or the exact Medicare Advantage plan, any separate plan dental benefit, Health First Colorado eligibility, and the member's Medicaid category. CMS distinguishes full-benefit dual eligibility from Medicare Savings Program categories that may pay only certain Medicare costs.
A person with a Medicare Savings Program is not necessarily entitled to the full Health First Colorado adult dental benefit. Conversely, a full-benefit Health First Colorado member may have Medicaid dental coverage even when Original Medicare excludes routine dentistry. Only the official enrollment records and plan materials determine the combination.
Original Medicare dental coverage is limited but changing
CMS explains that Original Medicare generally excludes routine care connected with teeth, such as ordinary fillings, cleanings, and replacement of teeth. It can cover specified dental services when they are inextricably linked to the clinical success of certain covered medical care, as well as some related hospital services under defined conditions.
A Medicare Advantage plan may offer supplemental dental benefits beyond Original Medicare. Those benefits vary by plan, network, allowance, frequency, and authorization. Ask the plan about the exact provider, service, date, and remaining benefit. Do not assume that a card saying 'Medicare Advantage' means a specific dentist participates in its dental network.
Full-benefit Health First Colorado dental rules still apply
When a dually enrolled adult has the full Health First Colorado dental benefit, the current $3,000 July–June standard adult maximum and its exclusions can apply after coordination. The service must still meet Health First Colorado network, clinical, frequency, authorization, and claim rules.
The existence of Medicare or a supplemental dental allowance does not automatically increase the Medicaid limit or permit a provider to bill the member for a Medicaid-covered service. It may change which plan processes first, what documentation is needed, and how amounts are applied. Ask both plans and the office to explain the expected sequence before non-urgent treatment.
Five questions for the dental office and plans
- 1
Which dental networks include this dentist and location?
Confirm Medicare Advantage or supplemental participation separately from DentaQuest participation.
- 2
Which plan should process first?
Ask about the exact procedure and date; do not assume the order from prior medical claims.
- 3
Does the office need a primary denial?
A Medicaid claim may require proof that Medicare or other coverage processed or excluded the service.
- 4
How will each benefit limit apply?
Ask about plan allowances, the Health First Colorado adult limit, pending claims, exceptions, and non-covered items.
- 5
What may the member legally owe?
Request written explanations from both plans and any required advance disclosure before agreeing to pay.
If the claim or bill does not match the explanation
Collect explanations from Medicare or the Medicare Advantage plan, DentaQuest, and the dental office. Match procedure codes, dates, provider, payment, denial reasons, and amounts. Ask whether the problem is payer order, missing primary documentation, network status, authorization, coding, a benefit limit, or a true exclusion.
QMB billing protections apply to Medicare cost-sharing for people in the Qualified Medicare Beneficiary program, but they do not turn excluded routine dental services into Medicare-covered care. For case-specific help, contact the plans, Health First Colorado, Medicare, or a qualified benefits counselor. Preserve every appeal deadline while seeking a correction.
Primary sources
Verify the details that affect your care
We use official program materials and clearly identify Star Dental pages. Policies and personal benefit status can change.
- CMS Medicare dental coverage
- CMS dual eligibility categories
- Colorado Third Party Liability
- Current adult benefit summary
- Health First Colorado billing policy
- Health First Colorado Member Contact Center
- Star Dental Medicaid services