Joshua CosekPA-C
Physician Assistant
2027 Medicare Advantage
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Medicare Advantage plans for Santa Clara County, CA, Berrien County, MI and San Francisco County, CA.
Use the name or plan ID on your member card, or choose your insurance company.
Directory results See what each insurance company reports
Listed on 4 plans so far
Some of Imperial Health Plan of California, Inc., Aetna Medicare, Alignment Health Plan, Anthem Blue Cross, Astiva Health, Blue Care Network, Blue Shield of California, CCHP (Chinese Community Health Plan), Health Alliance Plan by Henry Ford Health, Humana, Kaiser Permanente, McLaren Medicare, Priority Health Medicare, San Francisco Health Plan, Santa Clara Family Health Plan, SCAN Health Plan, UnitedHealthcare and Wellcare's 2027 plans in Santa Clara County, CA, Berrien County, MI and San Francisco County, CA haven't been checked yet.
The 110 Medicare Advantage plans we show for Santa Clara County, CA, Berrien County, MI and San Francisco County, CA in 2027
- 4 list Joshua
- 30 not listed
- 76 not checked yet

Imperial Health Plan of California, Inc.
4 plans list Joshua.
Imperial Courage Plan (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 505 Parnassus Ave, Ste M917, San Francisco, CA, 94143
This result applies to these offices. Other locations are not confirmed.
$0a monthImperial Dynamic Plan (HMO)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 505 Parnassus Ave, Ste M917, San Francisco, CA, 94143
This result applies to these offices. Other locations are not confirmed.
$0a monthImperial Senior Value (HMO C-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 505 Parnassus Ave, Ste M917, San Francisco, CA, 94143
This result applies to these offices. Other locations are not confirmed.
$0a monthImperial Flex (HMO C-SNP)
Source: Medicare.gov provider data.
Listed offices for this plan:
- 505 Parnassus Ave, Ste M917, San Francisco, CA, 94143
This result applies to these offices. Other locations are not confirmed.
$2.70a month

Aetna Medicare · Aetna Medicare HIDE
Not checked yet.
4 more Aetna Medicare plans haven't been checked yet.

Alignment Health Plan
Not checked yet.
3 more Alignment Health Plan plans haven't been checked yet.

Anthem Blue Cross · Anthem Blue Cross Partnership Plan
Not checked yet.
2 more Anthem Blue Cross plans haven't been checked yet.

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

Blue Care Network
Not checked yet.

Blue Shield of California · Blue Cross Blue Shield of Michigan
Not checked yet.
7 more Blue Shield of California plans haven't been checked yet.

CCHP (Chinese Community Health Plan)
Not checked yet.
Health Alliance Plan by Henry Ford Health
Not checked yet.

Humana
Not checked yet.

Kaiser Permanente
Not checked yet.
3 more Kaiser Permanente plans haven't been checked yet.

McLaren Medicare
Not checked yet.

Priority Health Medicare
Not checked yet.

San Francisco Health Plan
Not checked yet.

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 checked yet.
6 more SCAN Health Plan plans haven't been checked yet.

UnitedHealthcare
Not checked yet.

Wellcare
Not checked yet.
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 Joshua takes it. Free.
Original Medicare
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
Where they practice
4 practice locations
- NPI issued
- 2022
- Registry record updated
- Jun 10, 2026
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list Joshua Cosek?
In Santa Clara County, CA, Berrien County, MI and San Francisco County, CA, 4 Medicare Advantage plans for 2027 list Joshua 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.
Where does Joshua Cosek practice?
4 locations, including 300 Pasteur Dr, Stanford, CA. All of them are listed on this page.
How do I confirm Joshua is in my plan's network?
Call the member services number on your plan card and give them the NPI 1871226837, or ask a Silverpath advisor to check for you. It's free.
For providers
Is this your practice?
Patients can use Silverpath to find practices and check plan networks in Santa Clara County, CA, Berrien County, MI and San Francisco County, CA. 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.