Lisa ChangMD
Ophthalmology
2027 Medicare Advantage
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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
Not listed on the plans we can check
Lisa wasn't listed on the 10 2027 plans whose directories answered in Contra Costa County, CA. Directories can lag behind, so that isn't proof Lisa is out of network. Ask us to confirm.
The 10 Medicare Advantage plans we show for Contra Costa County, CA in 2027
- 10 not listed
Contra Costa Health Care Plus (HMO D-SNP)
Not listed on its 1 plan here. That isn't proof they're out of network.

Humana
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 Lisa 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 23, 2026
Where they practice
Practice location
- NPI issued
- 2007
- Registry record updated
- Sep 22, 2014
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Is Lisa Chang in network with Medicare Advantage plans?
Lisa wasn't listed on the 10 2027 plans whose directories answered in Contra Costa County, CA. Directories can lag, and other plans haven't been confirmed, so ask the office or a Silverpath advisor.
Does Lisa Chang take Contra Costa Health Care Plus (HMO D-SNP) Medicare Advantage plans?
The provider searches didn't return a listing for Lisa 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 Lisa is out of network. Ask the office or a Silverpath advisor to confirm.
Does Lisa Chang take Humana Medicare Advantage plans?
Humana's own provider directory doesn't list Lisa on its one 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 Lisa is out of network. Ask the office or a Silverpath advisor to confirm.
Does Lisa Chang take Imperial Health Plan of California, Inc. Medicare Advantage plans?
The provider searches didn't return a listing for Lisa 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 Lisa is out of network. Ask the office or a Silverpath advisor to confirm.
Where does Lisa Chang practice?
2338 Almond Ave, Concord, CA 94520.
How do I confirm Lisa is in my plan's network?
Call the member services number on your plan card and give them the NPI 1962605907, or ask a Silverpath advisor to check for you. It's free.
For providers
Is this your practice?
Patients in Contra Costa County, CA look up Lisa Chang by plan, and the directories we read don't list this practice yet. 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.