Provider profile

Katherine AllenNP

Nurse Practitioner

NPI 1831568013
300 Pasteur Dr, Palo Alto, CA 94305650-723-4000

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Medicare Advantage plans for Santa Clara County, CA.

Checked Oct 13, 2026

Use the name or plan ID on your member card, or choose your insurance company.

Directory results See what each insurance company reports

The 34 Medicare Advantage plans we show for Santa Clara County, CA in 2027

  • 4 list Katherine
  • 30 not listed

Imperial Health Plan of California, Inc.

4 plans list Katherine.

4plans
  • Imperial Courage Plan (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 535 Mission Bay Blvd S, San Francisco, CA, 94143

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

    HMONo drug coverage4 starsH5496-016-000Medicare.gov
    $0a month
  • Imperial Dynamic Plan (HMO)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 535 Mission Bay Blvd S, San Francisco, CA, 94143

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

    HMODrug coverage4 starsH5496-012-000Medicare.gov
    $0a month
  • Imperial Senior Value (HMO C-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 535 Mission Bay Blvd S, San Francisco, CA, 94143

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

    HMOFor people with certain chronic conditionsDrug coverage4 starsH5496-005-000Medicare.gov
    $0a month
  • Imperial Flex (HMO C-SNP)

    Source: Medicare.gov provider data.

    Listed offices for this plan:

    • 535 Mission Bay Blvd S, San Francisco, CA, 94143

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

    HMOFor people with certain chronic conditionsDrug coverage4 starsH5496-017-000Medicare.gov
    $2.70a month

Aetna Medicare

Not listed on its 3 plans here. That isn't proof they're out of network.

Alignment Health Plan

Not listed on its 13 plans here. That isn't proof they're out of network.

Anthem Blue Cross

Not listed on its 1 plan here. That isn't proof they're out of network.

Astiva Health

Not listed on its 3 plans here. That isn't proof they're out of network.

Blue Shield of California

Not listed on its 1 plan here. That isn't proof they're out of network.

Kaiser Permanente

Not listed on its 3 plans here. That isn't proof they're out of network.

Santa Clara Family Health Plan

Not listed on its 1 plan here. That isn't proof they're out of network.

SCAN Health Plan

Not listed on its 5 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 Katherine 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 22, 2026

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Practice location

300 Pasteur Dr
Palo Alto, CA 94305

NPI Registry
NPI issued
2015
Registry record updated
Jun 17, 2025

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

Common questions

Which 2027 Medicare Advantage plans list Katherine Allen?

In Santa Clara County, CA, 4 Medicare Advantage plans for 2027 list Katherine in provider data from Medicare.gov or the carrier, including Imperial Courage Plan (HMO), Imperial Dynamic Plan (HMO) and Imperial Senior Value (HMO C-SNP). 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.

Does Katherine Allen take Imperial Health Plan of California, Inc. Medicare Advantage plans?

Medicare.gov provider data lists Katherine on 4 Medicare Advantage plans for 2027 in Santa Clara County, CA, including Imperial Courage Plan (HMO) and Imperial Dynamic Plan (HMO). CMS matches apply to the covered offices shown with each plan; other offices are not confirmed. Confirm with the office or Imperial Health Plan of California, Inc. before you enroll.

Does Katherine Allen take Aetna Medicare Medicare Advantage plans?

The provider searches didn't return a listing for Katherine on these 3 plans for 2027 in Santa Clara County, CA. Directories can lag, and a clinician can be in network at another office, so that isn't proof Katherine is out of network. Ask the office or a Silverpath advisor to confirm.

Does Katherine Allen take Alignment Health Plan Medicare Advantage plans?

The provider searches didn't return a listing for Katherine on these 13 plans for 2027 in Santa Clara County, CA. Directories can lag, and a clinician can be in network at another office, so that isn't proof Katherine is out of network. Ask the office or a Silverpath advisor to confirm.

Where does Katherine Allen practice?

300 Pasteur Dr, Palo Alto, CA 94305.

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

Call the member services number on your plan card and give them the NPI 1831568013, or ask a Silverpath advisor to check for you. It's free.

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

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For providers

Is this your practice?

What patients see here today:

  • Provider searches did not return a listing for Katherine Allen on 30 plans from Aetna Medicare, Alignment Health Plan, Anthem Blue Cross, Astiva Health, Blue Shield of California, Kaiser Permanente, Santa Clara Family Health Plan and SCAN Health Plan in Santa Clara County, CA. Other offices are not confirmed; this isn't proof the practice is out of network.

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 2025-06-17). Plan networks: carrier provider directories and Medicare.gov provider data, checked Oct 13, 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 Katherine Allen 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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