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Find Supplemental Insurance Agents Near You in Diamond Bar, CA

Browse supplemental insurance agents serving Diamond Bar, California. Updated 2026-07-14.

The top-rated supplemental insurance agent in Diamond Bar, California is John Lam - State Farm Insurance Agent, rated 5.0 stars across 413 reviews. Other highly rated options include KCAL Insurance Agency (Diamond Bar) | 華興保險, Patrick Lau - State Farm Insurance Agent, AAA Diamond Bar Insurance and Member Services. This directory lists 18 supplemental insurance agents serving Diamond Bar.

Showing 18 supplemental insurance agents in Diamond Bar, CAListings are displayed in no particular order and are not ranked. Order does not constitute a recommendation or endorsement.

Comparison

Top 10 listings
#NameAddressPhone
1John Lam - State Farm Insurance Agent1470 Valley Vista Dr Ste 209(909) 259-9996
2KCAL Insurance Agency (Diamond Bar) | 華興保險1139 S Diamond Bar Blvd #A(909) 573-0703
3Patrick Lau - State Farm Insurance Agent3333 S Brea Canyon Rd STE 110(909) 598-1899
4AAA Diamond Bar Insurance and Member Services2843 S Diamond Bar Blvd(909) 444-0299
5Tita Guzman - State Farm Insurance Agent1200 S Diamond Bar Blvd UNIT 212(909) 348-0444
6Peggy Langin - State Farm Insurance Agent21671 Gateway Center Dr Ste 102(909) 861-8887
7Janet Simmons - State Farm Insurance Agent556 N Diamond Bar Blvd # 301(909) 595-8877
8Topco Insurance1397 S Diamond Bar Blvd(909) 860-7770
9Helen Wang: Allstate Insurance23359 Golden Springs Dr(909) 327-3088
10Short Stop Insurance Agency, Inc556 N Diamond Bar Blvd Suite 210(909) 396-8020
JL
1470 Valley Vista Dr Ste 209
John Lam - State Farm Insurance Agent
Supplemental Insurance Agent · Diamond Bar, CA

John Lam - State Farm Insurance Agent serves the Diamond Bar, California area as a supplemental insurance agent. This agency helps local residents and businesses fill gaps left by standard health or life insurance policies. Supplemental coverage options can provide financial protection for specific medical events or daily expenses not fully addressed by primary plans. These policies are designed to work alongside existing coverage, offering added security for unforeseen health incidents. Hospital indemnity and accident insurance are two specific services this agency handles for the Diamond Bar community.

KI
1139 S Diamond Bar Blvd #A
KCAL Insurance Agency (Diamond Bar) | 華興保險
Supplemental Insurance Agent · Diamond Bar, CA

KCAL Insurance Agency, also known as 華興保險, provides supplemental insurance agent services to clients in the Diamond Bar area. These plans help cover gaps left by major medical policies, offering financial support for everyday health costs and unexpected needs. The agency assists with regular policy reviews and plan adjustments to ensure coverage remains suitable. Its service plans include help with filing claims and navigating benefits. This supplemental insurance agent agency serves local single-family homes, apartments, retail businesses, and restaurants.

PL
3333 S Brea Canyon Rd STE 110
Patrick Lau - State Farm Insurance Agent
Supplemental Insurance Agent · Diamond Bar, CA

Patrick Lau - State Farm Insurance Agent serves Diamond Bar and the surrounding communities in eastern Los Angeles County. It handles supplemental insurance, including policies that help cover gaps left by major medical plans. These supplemental offerings address specific needs such as accidents, critical illness, and hospital confinement. Common client scenarios involve adding a layer of financial protection for unexpected health events. The agent manages these jobs by conducting a personal review to explain how different supplemental plans coordinate with an individual's existing health coverage.

AD
2843 S Diamond Bar Blvd
AAA Diamond Bar Insurance and Member Services
Supplemental Insurance Agent · Diamond Bar, CA

AAA Diamond Bar Insurance and Member Services serves homeowners, businesses, and property managers in Diamond Bar, California, who need supplemental insurance agent guidance. This agency helps clients navigate options for additional coverage that fills gaps left by standard policies, protecting against unexpected expenses. Their consultations focus on understanding individual risk profiles and recommending suitable supplemental plans. The company also extends its supplemental insurance services to clients in neighboring Walnut and the wider San Gabriel Valley region.

TG
1200 S Diamond Bar Blvd UNIT 212
Tita Guzman - State Farm Insurance Agent
Supplemental Insurance Agent · Diamond Bar, CA

Tita Guzman, operating as a State Farm Insurance Agent in Diamond Bar, CA, assists clients with both one-time policy setups and recurring service needs to manage coverage. As a supplemental insurance agent, the focus is on filling gaps left by primary health or life plans. Help is available for choosing a policy that addresses specific protection needs. The service for consultations and policy adjustments is generally available on an as-needed basis.

PL
21671 Gateway Center Dr Ste 102
Peggy Langin - State Farm Insurance Agent
Supplemental Insurance Agent · Diamond Bar, CA

Serving the Diamond Bar area, Peggy Langin - State Farm Insurance Agent provides supplemental insurance policies that help cover financial gaps not addressed by major medical plans. These plans typically offer cash benefits for hospital stays, critical illnesses, and accident recovery, assisting with deductibles and lost income. The agency guides clients in selecting appropriate coverage for their personal budgets and health needs. As the winter season approaches, it can help prepare for higher medical costs associated with seasonal illnesses and flu complications.

JS
556 N Diamond Bar Blvd # 301
Janet Simmons - State Farm Insurance Agent
Supplemental Insurance Agent · Diamond Bar, CA

Spring storms can create unexpected gaps in health coverage for Diamond Bar residents, and Janet Simmons - State Farm Insurance Agent addresses this need by reviewing supplemental insurance options such as hospital indemnity or accident policies. The agency focuses on helping local individuals and families fill Medicare gaps or add supplementary protection against out-of-pocket medical costs. Understanding each client’s current plan and budget allows for a focused comparison of available policies. A thorough initial assessment of existing coverage begins every new consultation.

TI
1397 S Diamond Bar Blvd
Topco Insurance
Supplemental Insurance Agent · Diamond Bar, CA

Topco Insurance facilitates coverage for individuals who need to address financial gaps left by standard health plans. The company operates as a supplemental insurance agent in Diamond Bar, California, focusing on specialized add-ons such as accident, critical illness, and hospital indemnity policies. These products help clients manage out-of-pocket expenses that primary insurance often excludes. Topco Insurance can serve commercial sectors ranging from professional offices and distribution warehouses to food service establishments seeking benefit packages for their employees.

HW
23359 Golden Springs Dr
Helen Wang: Allstate Insurance
Supplemental Insurance Agent · Diamond Bar, CA

Helen Wang of Allstate Insurance provides supplemental insurance coverage to residential clients in Diamond Bar, California, helping to fill gaps left by primary health or life policies. Commercial clients in the local area also receive assistance with tailored supplemental plans that address specific business risks. Serving the broader Diamond Bar region, the agent offers personalized guidance during initial consultations. For residents and business owners, follow-ups are coordinated between regular scheduled visits to adjust coverage as needs change and ensure continued protection without interruption.

SS
556 N Diamond Bar Blvd Suite 210
Short Stop Insurance Agency, Inc
Supplemental Insurance Agent · Diamond Bar, CA

Short Stop Insurance Agency, Inc is known for helping residents of Diamond Bar, CA secure practical supplemental insurance coverage. Its service range includes policies that bridge gaps left by major medical plans, offering financial protection for unexpected out-of-pocket expenses. Agents assist clients in selecting plans that address specific short-term needs, such as accident or critical illness events. Their work focuses on making complex insurance options clear for local policyholders. A specialty service it can add on is dental and vision coverage for individuals seeking more comprehensive supplemental support.

MA
3333 S Brea Canyon Rd STE 215
MEA & Associates Insurance Services
Supplemental Insurance Agent · Diamond Bar, CA
(909) 895-7104
meainsurance.com
DI
1340 Valley Vista Dr #200
DSG Insurance Services Inc
Supplemental Insurance Agent · Diamond Bar, CA
(909) 396-9050
dsgpcins.com
WM
636 N Diamond Bar Blvd
Western Merchants Insurance Services Inc
Supplemental Insurance Agent · Diamond Bar, CA
(909) 869-6150
westernmerchants.com/contact
LS
1930 S Brea Canyon Rd #115
Living Stone Insurance Services Inc.
Supplemental Insurance Agent · Diamond Bar, CA
(909) 979-3713
livingstoneinsurance.com
AI
23359 Golden Springs Dr
Allstate Insurance: Xun Wang
Supplemental Insurance Agent · Diamond Bar, CA
(909) 327-3088
agents.allstate.com/helen-wang-diamond-bar-ca.html
CF
1249 S Diamond Bar Blvd UNIT 245
C&C Family Insurance Services
Supplemental Insurance Agent · Diamond Bar, CA
(877) 520-2746
ccfamilyinsurance.com
FO
1345 S Diamond Bar Blvd
FIRST OPTION INSURANCE
Supplemental Insurance Agent · Diamond Bar, CA
(909) 612-0623
firstoptioninsure.com
TH
1653 Cypress Grove Ln
True Health Plans
Supplemental Insurance Agent · Diamond Bar, CA
(800) 207-9851

What Does a a Supplemental Insurance Agent in Diamond Bar Cost?

Costs for supplemental insurance in California vary by plan type, age, and health status. Medigap plans typically range from $100 to $300 per month for most people. Medicare Advantage plans often have low or zero premiums but may have higher out-of-pocket costs. Agent services are usually free to you because they earn commissions from insurance companies. This is general information and not insurance advice.

About supplemental insurance agents in Diamond Bar

Supplemental insurance agents in Diamond Bar, California help residents find policies that cover gaps in Medicare or employer health plans. California law requires agents to be licensed by the California Department of Insurance and follow strict rules about plan disclosures. Local agents can explain how plans like Medigap or Medicare Advantage work with your existing coverage.

Frequently Asked Questions

What is a supplemental insurance agent in Diamond Bar?

A supplemental insurance agent is a licensed professional who helps you buy policies that pay for costs not covered by Medicare or major medical insurance. They can explain plan benefits, compare options, and assist with enrollment in Diamond Bar.

Do I need supplemental insurance in California?

Supplemental insurance is not required by California law, but it can help with out-of-pocket costs like deductibles and copays. Many people choose a Medigap plan or Medicare Advantage plan to reduce financial risk.

How do I choose a supplemental insurance agent in Diamond Bar?

Look for an agent licensed by the California Department of Insurance with experience in Medicare or health plans. Ask about their knowledge of local carriers and whether they represent multiple companies so you can compare options.

Supplemental Insurance Agents in Other California Cities

Listings are compiled from publicly available information. Inclusion does not constitute endorsement. Verify each supplemental insurance agent's credentials and current standing with your state Department of Insurance.