2027 Medicare Advantage Changes in Fairfax County

Every Fall, Medicare Advantage carriers submit updated bids to CMS and publish their changes for the coming plan year. For Fairfax County beneficiaries, the 2027 round brings a mix of standard CMS-driven changes (premiums, deductibles, the Part D out-of-pocket cap) and plan-specific moves from the carriers active in Northern Virginia — mainly Inova-aligned plans, Kaiser Permanente, Humana, UnitedHealthcare, Aetna, and CareFirst BlueCross BlueShield.

Here’s what you should know before you look at your Annual Notice of Change (ANOC) letter.

The 2027 federal baseline

• Standard Part B premium: $202.90/month (up from $185.00 in 2025)
• Part B annual deductible: $283 (up from $257)
• Part A inpatient deductible: $1,736 per benefit period (up from $1,676)
• Part D national base beneficiary premium: $38.99 (used to calculate late enrollment penalties)
• Part D out-of-pocket cap: $2,000 annually (unchanged from 2025 — the IRA cap kicked in two plan years ago and continues)

These numbers affect every Medicare beneficiary regardless of plan. Your Part B premium is deducted from Social Security or billed quarterly; the fact that it went up means your effective MA plan cost went up too, even if the plan’s own premium didn’t change.

What’s shifting in Fairfax County MA plans

Network churn at Inova-aligned plans

Inova is the dominant hospital system in Northern Virginia, with Inova Fairfax Hospital, Inova Fair Oaks, Inova Alexandria, and the Inova medical group network. Several MA carriers partner with Inova either as the exclusive provider network or as a preferred tier. For 2027, watch for:

• Specialist roster changes within Inova Medical Group — a plan that covered your cardiologist last year may not next year
• Narrower out-of-area urgent care benefits (some carriers trimmed this for 2027 to offset the Part D OOP cap exposure)
• Prior authorization expansions — CMS tightened rules on prior auth starting January 1, 2027, requiring plans to process routine requests within 7 days, but also allowing them to add new prior-auth requirements with 60 days’ notice

Kaiser Permanente’s integrated model

Kaiser Permanente operates differently than any other MA plan in Fairfax: it’s both the insurer and the care delivery system. Kaiser members get their care almost exclusively at Kaiser facilities with Kaiser physicians. For 2027, Kaiser is expanding its Reston and Tysons Corner medical offices and adding specialists, which is a quiet positive for members in those zip codes.

The trade-off remains the same: Kaiser’s integrated model works beautifully if you’re comfortable receiving all your care within the Kaiser system. It doesn’t work at all if you have a long-standing relationship with a non-Kaiser specialist.

Humana and United benefit changes

Both Humana and UnitedHealthcare offer broad-network PPO plans in Fairfax that include most Inova facilities plus community hospitals (Virginia Hospital Center, Reston Hospital Center). For 2027:

• Some plans reduced over-the-counter (OTC) allowance quarterly budgets
• Dental allowances shifted — comprehensive dental benefits moved from included to optional-rider on some plans
• Vision and hearing allowances largely held steady
• Fitness benefits (SilverSneakers, Renew Active) remained included across most plans

How to read your ANOC letter

Your Annual Notice of Change arrives in late September or early October. It’s a 20-40 page document that most people file without reading. Here’s what to look at specifically:

1. Your monthly plan premium. Even a $5 change compounds.
2. Primary care copay. Often changes by $5-10 year to year.
3. Specialist copay. Same.
4. Hospitalization copay per day. This is where surprise bills happen. Some plans go from $300/day for 5 days to $400/day for 5 days — a $500 swing on a single stay.
5. Maximum out-of-pocket (MOOP). The cap protecting you from catastrophic cost. Should be comfortably below your liquid savings.
6. Drug formulary changes. Check every prescription you take. A drug moving from Tier 2 to Tier 3 can easily add $500-$1,500 to your annual cost.
7. Network changes. If a specialist you see is now out-of-network, you either switch plans or switch specialists. Both have costs.

When to switch plans

The Medicare Annual Enrollment Period runs October 15 through December 7. Switch during this window and your new plan starts January 1. If you miss AEP, you can still switch from Medicare Advantage to Original Medicare (and add a Part D plan) during the Medicare Advantage Open Enrollment Period, January 1 through March 31.

Reasons to actually switch:

• Your current specialist went out-of-network
• Your prescription formulary tier changed meaningfully
• A new plan has your preferred network + lower MOOP + similar premium
• Your plan’s star rating dropped below 4 (quality signal)

Reasons not to switch just because something changed:

• A $2 premium increase on an otherwise good plan
• A single dental-allowance reduction when you don’t use the dental benefit
• Switching for a shiny new OTC allowance when everything else is worse

The Fairfax-specific wildcard

Northern Virginia has a high concentration of federal retirees on FEHB coordination plans, plus a significant Kaiser member base. See our Inova vs Kaiser guide for the two-model framework that most Fairfax decisions come down to. Whether an MA plan is the right fit depends heavily on what other coverage you have — and that’s a conversation worth having with a licensed agent before AEP closes on December 7.

If you’d like help running the comparison, our team covers Virginia and adjacent states. A 30-minute call is usually enough to make the decision confidently. Our Medicare premium calculator can also walk you through the Part B + IRMAA math before the call, and our eligibility checker covers which enrollment window you’re in.