ADVERTISING DISCLOSURE: BeforeInsuranceUSA.com is an informational directory, not an insurance agency or broker. We do not sell insurance or provide insurance advice. No agent-client relationship is created by using this site. No agent listed on this site has paid for, authorized, or approved their listing. This is an advertisement.
Browse medicare insurance agents serving Brentwood, California. Contact information and addresses listed below.
20 agents listed
Updated May 2026
Brentwood, CA
Important: Listings are compiled from publicly available sources and have not been independently verified by BeforeInsuranceUSA.com. We do not endorse any agent or guarantee outcomes. Verify licensing and disciplinary status with the Department of Insurance of California before hiring.
Showing 20 medicare insurance agents in Brentwood, CA
Listings are displayed in no particular order and are not ranked by BeforeInsuranceUSA. Order does not constitute a recommendation or endorsement of any agent.
Julio Martinez - State Farm Insurance Agent
2200 Sand Creek Rd ste d, Brentwood, CA 94513
(925) 432-2129
agentjulio.com
Ross Lopez - State Farm Insurance Agent
71 K, Sand Creek Rd, Brentwood, CA 94513
(925) 634-0330
brentwoodinsuranceagent.com
Farmers Insurance - Raul Diaz
9030 Brentwood Blvd STE H, Brentwood, CA 94513
(925) 679-2300
agents.farmers.com
Jose Martinez - State Farm Insurance Agent
2200 Sand Creek Rd Ste D, Brentwood, CA 94513
(925) 634-2333
josemartinez.us
Terry Nguyen - State Farm Insurance Agent
1120 2nd St #107, Brentwood, CA 94513
(925) 513-1200
agentterry.com
Zeigler Insurance
1300 Central Blvd Ste B, Brentwood, CA 94513
(925) 634-1240
zeiglerinsurance.com
Mark Murray - State Farm Insurance Agent
4431 Balfour Rd C, Brentwood, CA 94513
(925) 392-3228
gotmark.org
Stephanie Loureiro: Allstate Insurance
613 1st St Ste 203, Brentwood, CA 94513
(925) 634-1234
agents.allstate.com
Jayne Oertwig: Allstate Insurance
131 Sand Creek Rd Ste D, Brentwood, CA 94513
(925) 937-3520
agents.allstate.com
Circadian Insurance Brokers
8440 Brentwood Blvd suite h, Brentwood, CA 94513
(925) 417-8500
circadianbrokers.com
Farmers Insurance - EJ Paje
191 Sand Creek Rd Suite 202B, Brentwood, CA 94513
(650) 897-5540
agents.farmers.com
Jack Stone Insurance Agency Inc
144 Continente Ave #210, Brentwood, CA 94513
(925) 392-8365
jackstoneinsurance.com
Edward Dutra Insurance
8425 Brentwood Blvd b6, Brentwood, CA 94513
(925) 634-1194
edwarddutrainsurance.com
AdvoCare Insurance Services
3291 Walnut Blvd Ste 170, Brentwood, CA 94513
(925) 513-7778
Farmers Insurance - Denise Cosgrove
1210 Central Blvd Ste 108, Brentwood, CA 94513
(925) 308-4180
agents.farmers.com
Cid Cadigal, Liberty Mutual Insurance Agent
201 Sand Creek Rd suite a, Brentwood, CA 94513
(925) 308-7978 ext. 58227
Rich McDaniel - Mutual of Omaha Advisor
1181 Central Blvd Ste D, Brentwood, CA 94513
(925) 626-7334
agents.mutualofomaha.com
Cypress insurance
8340 Brentwood Blvd, Brentwood, CA 94513
(408) 377-5900
cypressins.com
Cosgrove Insurance Agency
1210 Central Blvd ste 108, Brentwood, CA 94513
(925) 308-4180
dcosgroveinsurance.com
East County Insurance Agency
6041 Lone Tree Wy Suite B, Brentwood, CA 94513
(925) 757-4208
mercuryinsurance.com
Medicare insurance agents in Brentwood, California help residents navigate Original Medicare, Medicare Advantage, and Part D drug plans. California state law requires agents to be licensed by the Department of Insurance and to follow strict marketing guidelines. These agents can explain how plans work with local providers in Contra Costa County.
What Does a Medicare Insurance Agent in Brentwood Cost?
Medicare insurance agent services in California are generally free to consumers because agents are paid commissions by insurance carriers. Plan premiums vary widely: Medicare Advantage plans may have $0 monthly premiums, while Medigap plans in California can range from $100 to $400 per month depending on your age and health. Part D drug plan premiums average around $30 to $100 per month. This is general information and not insurance advice.
* Cost estimates are general ranges based on publicly available data and compiled using automated research tools. Actual fees vary by agent and case complexity. This is not insurance advice — consult directly with an agent for fee specifics.
Frequently Asked Questions
What does a Medicare insurance agent in Brentwood do?
A Medicare insurance agent helps you compare plans, enroll in Medicare Part A and Part B, and choose a Medicare Advantage or Part D plan. They explain how California rules affect your coverage, such as annual enrollment periods and guaranteed issue rights.
When can I enroll in Medicare in Brentwood California?
You can enroll during your Initial Enrollment Period which starts three months before your 65th birthday month and ends three months after. California also has an Annual Enrollment Period from October 15 to December 7 each year. Special Enrollment Periods may apply for certain life events.
Are Medicare agents in California paid by commission?
Yes, Medicare insurance agents in California are typically paid commissions by the insurance companies, not by you directly. This means their services are usually free to you. However, California law requires agents to disclose their compensation if you ask.
Free • No Obligation
Compare Medicare Insurance Agents
Get matched with agents in Brentwood who handle your type of coverage.
Replace with iframe/embed code from your affiliate network
Affiliate Disclosure
The form above is provided by a third-party insurance marketing service. BeforeInsuranceUSA.com receives compensation when you submit a qualified inquiry. This is a free service with no obligation to hire any agent. Your information is collected and handled by the form provider according to their privacy policy.
Notice
BeforeInsuranceUSA.com is not an insurance agency, agent referral service, or insurance advice provider. No agent-client relationship is formed by submitting a form or using this site. We do not endorse, recommend, or vouch for the qualifications of any agent. Past results do not guarantee future outcomes. Each situation is different. Verify agent credentials with your state department of insurance before hiring.
About Our Listings
Agents listed on BeforeInsuranceUSA.com are compiled from publicly available directories, state department of insurance records, and business listings. Inclusion does not constitute endorsement. We do not verify agent licensing, disciplinary status, or qualifications. Verify each agent's current standing with the Department of Insurance of California.