Marshall Insurance
Medicare Solutions Made Simple
Helping Florida Seniors Navigate Medicare with Confidence
Personalized Medicare guidance in English and Spanish, proudly serving Florida’s Treasure Coast and beyond since 2008.
Why choose us
Trusted Medicare guidance since 2008
Experience you can trust
Over 15 years helping Florida seniors navigate Medicare with clarity and confidence.
Independent & unbiased
We work for you, not the insurance companies — always putting your needs first.
Bilingual support
Serving clients in both English and Spanish with clear, comfortable communication.
Proudly local
Based on the Treasure Coast and serving clients throughout all of Florida.
Meet Our Founder
Sofia Marshall
Founder · Licensed Medicare Agent · Since 2008
Sofia Marshall has been helping Medicare clients since 2008 and has operated as an independent broker since 2013. Fluent in both English and Spanish, she provides personalized guidance tailored to each client's unique health and financial needs.
Sofia believes in building long-term relationships — her goal is not just to enroll clients in a plan, but to ensure they truly understand their benefits and feel confident in every decision. Based on the Treasure Coast and serving surrounding areas, she offers the kind of honest, compassionate advice you can rely on for years to come.
Meet the Rest of the Team
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Ann Geismar
LCSW, Independent Agent
Ann brings over 35 years of experience working with older adults and has specialized in Medicare insurance since 2007. Based in Palm City and covering the Treasure Coast, her focus is educating clients and helping them find the right coverage for their health and financial needs.
📞 Call Ann for a free consultation: 772-485-1112
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Cathy Riggs
Independent Agent
With nearly 30 years of Medicare sales experience, Cathy has built a reputation for exceptional customer service across the Treasure Coast, St. Lucie and Indian River County. A Humana-trained agent turned independent in 2017, she brings deep industry knowledge and a genuine commitment to every client she serves.
📞 Call Cathy for a free consultation: 772- 485- 4961
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Gabriela Proctor
Independent Agent , EMT-P
Gabriela is a Licensed Florida Insurance Agent with a passion for helping seniors navigate their Medicare options with clarity and confidence. Based in Palm Beach Gardens and servicing the Treasure Coast and Palm Beach County, her background as an active Paramedic gives her a unique understanding of her clients' healthcare needs, making her a trusted guide in finding the right coverage.
📞 Call Gabriela for a free consultation: 772- 233- 5389
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Bailey Moselle
Independent Agent
A 2025 Florida State University graduate in Communication and Digital Media, Bailey brings fresh energy and a warm, patient approach to every client conversation. Based in Palm City and servicing the Treasure Coast and Palm Beach County, she is fully licensed in Florida and committed to guiding clients through their Medicare options with clarity and care.📞 Call Bailey for a free consultation: 772- 834- 7380
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Susan Apfelberg
Independent Agent
With over 30 years of experience in the health care industry and a BHS degree from Florida Atlantic University, Susan spent most of her career at a major health plan building physician relationships and developing deep expertise in Medicare and Medicare Advantage across South Florida.
A proud Lighthouse Point resident, Susan now brings that insider knowledge to clients throughout Broward County and is dedicated to making the Medicare process straightforward and stress-free.
📞 Call Susan for a free consultation: (954) 684- 2443
What we offer
Our Medicare services
We don't just help you choose a plan — we educate you, answer your questions, and make sure you feel confident every step of the way.
Medicare Advantage Plans
All-in-one plans that may include hospital, medical, and prescription coverage tailored to your lifestyle and needs.
Medicare Supplement Plans
Coverage that helps with out-of-pocket costs not paid by Original Medicare — no surprises, just clarity.
Prescription Drug Plans (Part D)
We make sure your medications are covered in the most cost-effective way possible.
Annual Plan Reviews
Your needs change — and so can your plan. We review your coverage every year to make sure it still works for you.
Providers we work with
“Not all plans are available in all areas. We do not offer every plan available in your area. Currently we represent multiple organizations which offer multiple products in your area. Please contact Medicare.gov or 1-800-MEDICARE to get information on all of your options.”
Already Have Medicare?
Not Happy With Your
Current Plan?
You may have more options than you think — and exploring them costs you nothing.