Provider profile

John AddisonMD

Internal Medicine, Geriatric Medicine

3 locationsNPI 1659323087
9725 SE 36th St Ste 214, Mercer Island, WA 98040206-275-3588

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Medicare Advantage plans for King County, WA and Boulder County, CO.

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Directory results See what each insurance company reports

Listed on 21 plans so far

Some of UnitedHealthcare, Aetna Medicare, Wellpoint, Community Health Plan of WA Medicare Advantage, Regence BlueShield, Devoted, HealthSpring, Humana, Kaiser Permanente, Molina Healthcare of Washington, Inc., Perennial Advantage, Select Health and Wellcare's 2027 plans in King County, WA and Boulder County, CO haven't been checked yet.

The 111 Medicare Advantage plans we show for King County, WA and Boulder County, CO in 2027

  • 21 list John
  • 34 not listed
  • 56 not checked yet

UnitedHealthcare

9 plans list John; not listed on 6 other plans.

9plans
  • AARP Medicare Advantage from UHC WA-6 (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 5495 Arapahoe Ave, Ste 100G, Boulder, CO, 80303

    This result applies to these offices. Other locations are not confirmed.

    HMO-POSDrug coverage3.5 starsH3805-017-000Medicare.gov
    $0a month
  • AARP Medicare Advantage from UHC WA-7 (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 5495 Arapahoe Ave, Ste 100G, Boulder, CO, 80303

    This result applies to these offices. Other locations are not confirmed.

    HMO-POSDrug coverage3.5 starsH3805-032-000Medicare.gov
    $0a month
  • AARP Medicare Advantage Patriot No Rx WA-MA02 (HMO-POS)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 5495 Arapahoe Ave, Ste 100G, Boulder, CO, 80303

    This result applies to these offices. Other locations are not confirmed.

    HMO-POSNo drug coverage3.5 starsH3805-035-000Medicare.gov
    $0a month
  • AARP Medicare Advantage Patriot No RX WA-MA3 (PPO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 5495 Arapahoe Ave, Ste 100G, Boulder, CO, 80303

    This result applies to these offices. Other locations are not confirmed.

    PPONo drug coverage4.5 starsH2001-148-000Medicare.gov
    $0a month

11 more UnitedHealthcare plans haven't been checked yet.

Aetna Medicare

5 plans list John; not listed on 1 other plan.

5plans
  • Aetna Medicare Eagle (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 5495 Arapahoe Ave, Ste 100G, Boulder, CO, 80303

    This result applies to these offices. Other locations are not confirmed.

    HMONo drug coverage3.5 starsH3748-019-000Medicare.gov
    $0a month
  • Aetna Medicare Eagle (PPO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 5495 Arapahoe Ave, Ste 100G, Boulder, CO, 80303

    This result applies to these offices. Other locations are not confirmed.

    PPONo drug coverage4 starsH5521-330-000Medicare.gov
    $0a month
  • Aetna Medicare Signature (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 5495 Arapahoe Ave, Ste 100G, Boulder, CO, 80303

    This result applies to these offices. Other locations are not confirmed.

    HMODrug coverage3.5 starsH3748-003-000Medicare.gov
    $0a month
  • Aetna Medicare Signature (PPO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 5495 Arapahoe Ave, Ste 100G, Boulder, CO, 80303

    This result applies to these offices. Other locations are not confirmed.

    PPODrug coverage4 starsH5521-431-000Medicare.gov
    $0a month

6 more Aetna Medicare plans haven't been checked yet.

Wellpoint · Anthem Blue Cross and Blue Shield

3 plans list John.

3plans
  • Wellpoint Dual Advantage (HMO D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 9725 SE 136th St, Mercer Island, WA, 98040
    • 9725 SE 36th St, Mercer Island, WA, 98040
    • 2101 Ken Pratt Blvd, Longmont, CO, 80501
    • 5495 Arapahoe Ave, Boulder, CO, 80303

    This result applies to these offices. Other locations are not confirmed.

    HMOFor people with Medicare and MedicaidDrug coverage3.5 starsH8849-016-000Medicare.gov
    $6.30a month
  • Wellpoint Dual Advantage Plus (HMO D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 9725 SE 136th St, Mercer Island, WA, 98040
    • 9725 SE 36th St, Mercer Island, WA, 98040
    • 2101 Ken Pratt Blvd, Longmont, CO, 80501
    • 5495 Arapahoe Ave, Boulder, CO, 80303

    This result applies to these offices. Other locations are not confirmed.

    HMOFor people with Medicare and MedicaidDrug coverage3.5 starsH8849-017-000Medicare.gov
    $6.30a month
  • Wellpoint Full Dual Advantage (HMO D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 9725 SE 136th St, Mercer Island, WA, 98040
    • 9725 SE 36th St, Mercer Island, WA, 98040
    • 2101 Ken Pratt Blvd, Longmont, CO, 80501
    • 5495 Arapahoe Ave, Boulder, CO, 80303

    This result applies to these offices. Other locations are not confirmed.

    HMOFor people with Medicare and MedicaidDrug coverage3.5 starsH8849-015-000Medicare.gov
    $6.30a month

2 more Wellpoint plans haven't been checked yet.

Community Health Plan of WA Medicare Advantage

2 plans list John.

2plans
  • Community Health Plan of WA Dual Complete (HMO D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 1035 116th Ave NE, Bellevue, WA, 98004

    This result applies to these offices. Other locations are not confirmed.

    HMOFor people with Medicare and MedicaidDrug coverage3.5 starsH5826-014-000Medicare.gov
    $6.30a month
  • Community Health Plan of WA Dual Select (HMO D-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 1035 116th Ave NE, Bellevue, WA, 98004

    This result applies to these offices. Other locations are not confirmed.

    HMOFor people with Medicare and MedicaidDrug coverage3.5 starsH5826-017-000Medicare.gov
    $6.30a month

Regence BlueShield

2 plans list John.

2plans
  • Regence BlueAdvantage HMO (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 9725 SE 36th St, Ste 410, Mercer Island, WA, 98040

    This result applies to these offices. Other locations are not confirmed.

    HMODrug coverageH1997-014-000Medicare.gov
    $188a month
  • Regence MedAdvantage + Rx Enhanced (PPO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 9725 SE 36th St, Ste 410, Mercer Island, WA, 98040

    This result applies to these offices. Other locations are not confirmed.

    PPODrug coverage4 starsH5009-002-000Medicare.gov
    $201a month

Devoted

Not checked yet.

11 more Devoted plans haven't been checked yet.

HealthSpring

Not checked yet.

Humana

Not checked yet.

13 more Humana plans haven't been checked yet.

Kaiser Permanente

Not checked yet.

6 more Kaiser Permanente plans haven't been checked yet.

Molina Healthcare of Washington, Inc.

Not listed on its 2 plans here. That isn't proof they're out of network.

Perennial Advantage

Not checked yet.

Select Health

Not checked yet.

Wellcare

Not listed on its 2 plans here. That isn't proof they're out of network.

Premiums are each plan's own monthly premium, as filed with Medicare. You keep paying your Medicare Part B premium.

Can't find your plan?Tell us the plan you have, and a licensed Silverpath advisor will check whether John takes it. Free.

Original Medicare status

Most Medicare Supplement (Medigap) policies have no provider network: they help pay Original Medicare's cost sharing where Medicare is accepted. Medicare SELECT policies can require network providers for full benefits. Ask the office whether they accept Medicare.

Medicare enrollment and assignment have not been verified here. Advantage directory results do not answer this question.

No opt-out record in this CMS file. CMS's file covers data through 2026-08-31. This does not establish Medicare enrollment, assignment, or whether the office accepts new Medicare patients.

CMS opt-out source · Data through 2026-08-31 · Reviewed Oct 25, 2026

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3 practice locations

9725 SE 36th St Ste 214
Mercer Island, WA 98040

NPI Registry

5495 Arapahoe Ave Ste 100g
Boulder, CO 80303

NPI Registry

2101 Ken Pratt Blvd Ste 104g
Longmont, CO 80501

NPI Registry
NPI issued
2006
Registry record updated
Sep 27, 2024

Medicare's clinician details aren't available on this page yet.

Common questions

Which 2027 Medicare Advantage plans list John Addison?

In King County, WA and Boulder County, CO, 21 Medicare Advantage plans for 2027 list John in provider data from Medicare.gov or the carrier, including AARP Medicare Advantage from UHC WA-6 (HMO-POS), AARP Medicare Advantage from UHC WA-7 (HMO-POS) and AARP Medicare Advantage Patriot No Rx WA-MA02 (HMO-POS). CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Networks can change during the year, so confirm with the office or the plan before you enroll.

Where does John Addison practice?

3 locations, including 9725 SE 36th St Ste 214, Mercer Island, WA. All of them are listed on this page.

How do I confirm John is in my plan's network?

Call the member services number on your plan card and give them the NPI 1659323087, or ask a Silverpath advisor to check for you. It's free.

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A Silverpath advisor can confirm John's networks with the carrier and help you compare plans that include them.

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Is this your practice?

Patients can use Silverpath to find practices and check plan networks in King County, WA and Boulder County, CO. Tell us which plans you take, or want to take, and we'll keep this page accurate and talk with you about reaching more Medicare patients and carriers.

Sources. Name, specialty and locations: the CMS NPI Registry (record updated 2024-09-27). Plan networks: carrier provider directories and Medicare.gov provider data, checked Oct 31, 2026. CMS matches apply to the covered offices shown with each plan. Plans: CMS 2027 Medicare Advantage landscape.

Networks change during the year, and a directory can be out of date. Confirm with the provider's office and the plan before you enroll or schedule care.

Silverpath is a licensed insurance agency. This page isn't affiliated with or endorsed by John Addison or their practice. Not connected with or endorsed by the U.S. government or the federal Medicare program.

We do not offer every plan available in your area. Please contact Medicare.gov or 1-800-MEDICARE to get information on all of your options.

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