Clayton Barnes MartinezMD, MPH
Psychiatry & Neurology, Psychiatry
2027 Medicare Advantage
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The 143 Medicare Advantage plans we show for Alameda, Orange and Fresno counties, CA in 2027
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Premiums are each plan's own monthly premium, as filed with Medicare. You keep paying your Medicare Part B premium.
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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 12, 2026
Where they practice
3 practice locations
- NPI issued
- 2016
- Registry record updated
- Nov 19, 2024
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Where does Clayton Barnes Martinez practice?
3 locations, including 2100 Powell St, Emeryville, CA. All of them are listed on this page.
How do I confirm Clayton is in my plan's network?
Call the member services number on your plan card and give them the NPI 1922453513, 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 Alameda, Orange and Fresno counties, 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.