John ChoMD
Family Medicine
2027 Medicare Advantage
Check your plan
Medicare Advantage plans for Contra Costa 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
The 10 Medicare Advantage plans we show for Contra Costa County, CA in 2027
- 1 lists John
- 9 not listed
Humana
1 plan lists John.
HumanaChoice H5525-084 (PPO)
Source: Humana provider directory.
Listed offices for this plan:
- 2700 Grant St, Ste 110, Concord, CA, 94520
This result applies to these offices. Other locations are not confirmed.
$93a month
Contra Costa Health Care Plus (HMO D-SNP)
Not listed on its 1 plan here. That isn't proof they're out of network.
Imperial Health Plan of California, Inc.
Not listed on its 4 plans 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.
UnitedHealthcare
Not listed on its 1 plan 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
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 21, 2026
Where they practice
Practice location
- NPI issued
- 2006
- Registry record updated
- Apr 2, 2014
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Which 2027 Medicare Advantage plans list John Cho?
In Contra Costa County, CA, 1 Medicare Advantage plan for 2027 lists John in the carrier's own provider directory, including HumanaChoice H5525-084 (PPO). Networks can change during the year, so confirm with the office or the plan before you enroll.
Does John Cho take Humana Medicare Advantage plans?
Humana's own provider directory lists John on one Medicare Advantage plan for 2027 in Contra Costa County, CA: HumanaChoice H5525-084 (PPO). Confirm with the office or Humana before you enroll.
Does John Cho take Contra Costa Health Care Plus (HMO D-SNP) Medicare Advantage plans?
The provider searches didn't return a listing for John on this plan for 2027 in Contra Costa County, CA. Directories can lag, and a clinician can be in network at another office, so that isn't proof John is out of network. Ask the office or a Silverpath advisor to confirm.
Does John Cho take Imperial Health Plan of California, Inc. Medicare Advantage plans?
The provider searches didn't return a listing for John on these 4 plans for 2027 in Contra Costa County, CA. Directories can lag, and a clinician can be in network at another office, so that isn't proof John is out of network. Ask the office or a Silverpath advisor to confirm.
Where does John Cho practice?
1450 Treat Blvd, Suite 120b, Walnut Creek, CA 94597.
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 1609816107, or ask a Silverpath advisor to check for you. It's free.
For providers
Is this your practice?
What patients see here today:
- Provider searches did not return a listing for John Cho on 9 plans from Contra Costa Health Care Plus (HMO D-SNP), Imperial Health Plan of California, Inc., Kaiser Permanente and UnitedHealthcare in Contra Costa 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.