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  1. 🏠
  2. Medicare Advantage Plans
  3. Washington
  4. Whatcom County

2026 Medicare Advantage Plans in Whatcom County, WA

Last update: May 3, 2026. Enrollment data updated: May 2, 2026

Whatcom County, WA has 20 Medicare Advantage plans available in 2026. These include 13 plans with no monthly premium, and roughly 39% are rated at least 4 stars based on CMS data.

Medicare Advantage Special Needs Plans (SNPs) are not included in the figures shown above. View Special Needs Plans in Whatcom County, WA. Or explore all Medicare Options available in Whatcom County, WA.

  • PPO Plans
  • HMO Plans
  • HMO-POS Plans

At a Glance

County-level summary of Medicare Advantage plan availability and enrollment based on CMS data.

Average Monthly Premium: $23.15/mo
$0 Premium Plans: 13
Average MOOP: $6,605 ($9,250 max. in 2026)
Star Ratings (Plan Mix): 4+ Stars: 39% · 3 Stars: 56% · Below 3: 6%
Average Part D Deductible: $448.21
Total MA/MAPD Enrollment: 16,789
Plans with the Highest Enrollment
(as of May 2, 2026)
1. Wellcare Simple (HMO-POS) — 4,106 enrollees
2. AARP Medicare Advantage Extras from UHC WA-14 (HMO-POS) — 3,235 enrollees
3. Kaiser Permanente Medicare Advantage Harbor (HMO) — 2,505 enrollees

Medicare Advantage PPO Plans

Preferred Provider Organization (PPO) plans allow access to both in-network and out-of-network providers. Out-of-network care usually costs more, but PPOs offer greater flexibility in choosing doctors and hospitals.

  • Total PPO Plans 10
  • Average Monthly Premium $27.20/mo
  • Total PPO Enrollment 2,197
  • $0 Premium PPO Plans 6
  • Average MOOP $6,940
  • Top PPO by Enrollment AARP Medicare Advantage from UHC WA-12 (PPO) — 914 enrollees
  • PPO Plans Without Drug Coverage 5

Comparison table of 2026 PPO Medicare Advantage Plans available in Whatcom County, Washington
Health Plan Name CMS Rating* Premium Per Mo MOOP PDP Ded. CMS Plan ID
AARP Medicare Advantage from UHC WA-12
☆☆☆☆☆
$0 $6,700 $600 H2001-087-0
AARP Medicare Advantage from UHC WA-16
☆☆☆☆☆
$56 $6,700 $600 H2001-136-0
Humana USAA Honor Giveback
☆☆☆☆☆
$0 $9,150 N/A H7617-021-0
HumanaChoice H7617-016
☆☆☆☆☆
$87 $6,750 $615 H7617-016-0
AARP Medicare Advantage from UHC WA-0003
☆☆☆☆☆
$42 $6,700 $600 H1278-030-0
AARP Medicare Advantage Patriot No Rx WA-MA01
☆☆☆☆☆
$0 $6,700 N/A H1278-031-0
Humana USAA Honor Giveback
☆☆☆☆☆
$0 $5,100 N/A H5216-455-0
Humana USAA Honor Giveback
☆☆☆☆☆
$0 $9,150 N/A H5216-427-1
HumanaChoice H5216-048
☆☆☆☆☆
$87 $6,750 $615 H5216-048-0
Wellcare Patriot Giveback Open
☆☆☆☆☆
$0 $5,700 N/A H5965-003-0
What is the most popular PPO plan in Whatcom?

AARP Medicare Advantage from UHC WA-12 (PPO) is the top PPO in Whatcom, with 914 enrollees.

What is the number of PPO plans without Part D coverage in Whatcom?

There are 5 PPO plans in Whatcom without prescription drug coverage.

Medicare Advantage HMO Plans

HMO plans typically require members to use in-network providers and facilities, except in emergencies. In return, HMOs often offer lower monthly premiums and reduced cost-sharing.

Total HMO Plans
4
Average Monthly Premium
$18.50/mo
Total HMO Enrollment
5,345
$0 Premium HMO Plans
3
Average MOOP
$5,788
Top HMO by Enrollment
Kaiser Permanente Medicare Advantage Harbor (HMO) — 2,505 enrollees
HMO Plans Without Drug Coverage
1

Comparison table of 2026 HMO Medicare Advantage Plans available in Whatcom County, Washington
Health Plan Name CMS Rating* Premium Per Mo MOOP PDP Ded. CMS Plan ID
Kaiser Permanente Medicare Advantage Anchor
☆☆☆☆☆
$0 $6,600 $110 H5050-023-0
Kaiser Permanente Medicare Advantage Basic
☆☆☆☆☆
$0 $4,200 N/A H5050-001-0
Kaiser Permanente Medicare Advantage Harbor
☆☆☆☆☆
$74 $5,800 $100 H5050-017-0
Humana Gold Plus H5619-133
☆☆☆☆☆
$0 $6,550 $300 H5619-133-0

What is the typical premium for HMO plans in Whatcom?

HMO plans in Whatcom cost $18.50 per month on average.

Which HMO plan do most beneficiaries choose in Whatcom?

The most popular HMO plan in Whatcom is Kaiser Permanente Medicare Advantage Harbor (HMO), with 2,505 enrollees.

How many HMO options are offered without prescription drug coverage in Whatcom?

There are 1 HMO plans in Whatcom without prescription drug coverage.

Medicare Advantage HMO-POS Plans

HMO Point-of-Service (HMO-POS) plans combine HMO network requirements with limited out-of-network access. Care outside the network typically costs more, but HMO-POS plans provide added flexibility compared with standard HMOs.

  • Total HMO-POS Plans 6
  • Average Monthly Premium $19.50/mo
  • Total HMO-POS Enrollment 9,247
  • $0 Premium HMO-POS Plans 4
  • Average MOOP $6,592
  • Top HMO-POS by Enrollment Wellcare Simple (HMO-POS) — 4,106 enrollees
  • HMO-POS Plans Without Drug Coverage 0

Comparison table of 2026 HMO-POS Medicare Advantage Plans available in Whatcom County, Washington
Health Plan Name CMS Rating* Premium Per Mo MOOP PDP Ded. CMS Plan ID
AARP Medicare Advantage Essentials from UHC WA-6
☆☆☆☆☆
$0 $6,300 $355 H3805-017-0
AARP Medicare Advantage Extras from UHC WA-14
☆☆☆☆☆
$0 $6,700 $440 H3805-044-0
AARP Medicare Advantage from UHC WA-0005
☆☆☆☆☆
$38 $5,900 $355 H3805-015-0
AARP Medicare Advantage from UHC WA-0010
☆☆☆☆☆
$79 $4,900 $355 H3805-037-0
Wellcare Giveback
☆☆☆☆☆
$0 $9,250 $615 H0029-009-0
Wellcare Simple
☆☆☆☆☆
$0 $6,500 $615 H0029-011-0
What is the total number of HMO-POS plans in Whatcom?

In 2026, Whatcom has 6 HMO-POS plans with 9,247 enrollees.

How much do HMO-POS plans cost in Whatcom?

The typical HMO-POS premium in Whatcom is $19.50, and 4 plans have no monthly premium.

Below is a breakdown of CMS star ratings for Medicare Advantage plans available in Whatcom County, WA for 2026.

CMS Star Ratings for Medicare Advantage Plans in Whatcom County, WA (2026)
Rating Category Number of Plans Percent of Plans
5 Stars No 5-star plans available. 0%
4 Stars (includes 5 Stars) 7 39%
3 Stars 10 56%
Below 3 Stars 1 6%
Not Rated 2 10%
Average Rating 3.72

* Medicare Advantage star ratings are determined by CMS each year using a standardized 5-star rating system.

  • CMS.gov, Medicare Advantage Landscape Source Files — Last accessed May 2, 2026
  • CMS.gov, Medicare Part C & D Performance Data — Last accessed May 2, 2026
  • CMS.gov, Medicare Advantage & Part D Contract and Enrollment Data — Last accessed May 2, 2026

County-level figures shown on this page, including plan counts, enrollment totals, averages, and percentage distributions, reflect standard Medicare Advantage (MA/MAPD) plans only and are derived from CMS datasets using a standardized aggregation methodology.

Data sources and methodology documentation .

  • CMS.gov, "Medicare Advantage Plan Fact Sheet" — Last accessed 25 May, 2025
  • Medicare.gov, "Your coverage options" — Last accessed 25 May, 2025
  • Medicare.gov, "Joining a plan" — Last accessed 25 May, 2025

MedicarePlans.com is an independent, non-government informational resource and is not affiliated with or endorsed by the U.S. Government or the federal Medicare program.

Data provenance documentation is maintained in alignment with the U.S. Core Data for Interoperability (USCDI) Provenance standard .

Page content independently curated and maintained by David W. Bynon, Editorial Steward, using a standardized, data-driven methodology for accurate, non-commercial Medicare plan interpretation and resolution.

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