Foster City, California residents can choose from Original Medicare, Medicare Advantage, Medicare Supplement (Medigap), and Part D prescription drug plans, with availability set at the county level for Advantage and Part D. Foster City is served by the San Mateo Social Security office, about 5 miles away. Independent, no-pressure plan comparisons are available free by phone or video.
Key Enrollment Dates: –
Initial Enrollment Period: 7-month window around your 65th birthday
Annual Enrollment Period: October 15 – December 7
General Enrollment Period: January 1 – March 31
Looking for Medicare Supplement coverage in Foster City? Whether you’re turning 65 soon or already enrolled in Original Medicare, choosing the right Medigap plan can feel overwhelming. A Medicare agent serving Foster City can simplify the process so you can protect your retirement savings, avoid high out-of-pocket costs, and keep the doctors you trust.
MedicareVideoGuide.com provides independent Medicare enrollment guidance for Foster City, California residents in the 94404 ZIP code, entirely online by phone or video. As a Foster City resident in San Mateo County, the specific Medicare Advantage and Part D plans available to you are set at the county level by CMS.
Video Caption: Medicare enrollment overview
Video Summary: This video walks through how Original Medicare, Medicare Advantage, Medigap, and Part D fit together, and what typically determines which combination makes the most sense depending on your health needs and budget.
Delaying Medicare while working past 65 in Foster City is a practical choice for many people — but it comes with rules that are easy to misunderstand. When you have employer insurance through your own job or a spouse’s, you may qualify for a Special Enrollment Period that lets you sign up for Medicare later without a late penalty. However, the size of your employer, how your plan coordinates with Medicare, and your specific retirement timeline all affect when and how you should make the switch. A licensed Medicare agent serving Foster City can review your current employer coverage, help you understand exactly when to enroll, and make sure switching to Medicare goes smoothly without gaps, penalties, or unexpected costs along the way.
Video Caption: Working Past 65 and Medicare
Video Summary: This video covers how Medicare coordinates with employer coverage when you’re still working past 65 — which parts you can safely delay, how group health plan size changes the rules, and the enrollment window that opens once you eventually leave that job.
Concerned about keeping your current doctors in Foster City? You’re not alone. A Medicare Supplement plan (Medigap) gives you the freedom to visit any doctor or specialist who accepts Original Medicare, covering roughly 99% of providers across the country with no network restrictions. Let your Medicare Wingman at MedicareVideoGuide.com review your options and help you protect those trusted relationships without the hassle of network limitations.
Source: KFF
Video Caption: Keeping your doctors on Medicare
Video Summary: This video explains why network access is one of the biggest practical differences between Medigap and Medicare Advantage, especially if you have doctors you don’t want to give up.
Medicare Advantage plans use narrower networks tied to specific hospital systems — KFF’s national analysis found enrollees have access to roughly half the physicians available to someone on Original Medicare in the same area.
Source: KFF
In Foster City, Medicare Supplement premium increases are one of the most common frustrations seniors bring to a Medicare agent. Because Medigap plans are standardized nationwide, a Plan G from one company covers exactly the same things as a Plan G from another — pricing is the only variable. Reach out to your Medicare Wingman at MedicareVideoGuide.com for a free comparison of what’s currently available in Foster City.
Video Caption: Why Medigap premiums rise
Video Summary: This video breaks down why Medigap premiums for the exact same plan can rise at very different rates from one carrier to the next, and what that means for shopping around later without medical underwriting getting in the way.
The nearest Social Security field office to Foster City is in San Mateo, located roughly 5 miles away. There is no field office located within Foster City itself.
This is the office where you can apply for Medicare, apply for Social Security retirement benefits, or request a replacement Social Security card in person.
San Mateo Social Security Office 800 South Claremont Street, Suite 101, San Mateo, CA 94402 📍 Get Directions on Google Maps
Phone: (866) 726-8193 Fax: (833) 950-2108 Hours: Monday–Friday, 9:00 AM–4:00 PM (closed weekends and federal holidays — call ahead to confirm, as hours are subject to change)
This office also serves nearby Burlingame, Hillsborough, and San Mateo.
Services available at this office: –
✅ Apply for Social Security retirement benefits
✅ Enroll in Medicare Part A and Part B
✅ Apply for Social Security Disability Insurance (SSDI)
✅ Apply for Supplemental Security Income (SSI)
✅ Request a new or replacement Social Security card
✅ Update direct deposit information
✅ Apply for spousal or survivor benefits
✅ Request a benefit verification letter
An appointment is strongly recommended over walking in. Many of these tasks can also be completed online at ssa.gov without an office visit.
Also asked as: “when can I switch Medicare Advantage plans in the winter”
The Medicare Advantage Open Enrollment Period runs each winter and lets you make one change if you’re already enrolled in a Medicare Advantage plan. It’s more limited than the Annual Enrollment Period each fall.
Also asked as: “does Medicare pay for cardiac rehab”
Yes — Original Medicare covers cardiac rehabilitation for certain heart conditions and pulmonary rehabilitation for moderate to severe chronic obstructive pulmonary disease, when ordered by a doctor as part of a structured program.
Also asked as: “can I sign up for Medicare without going to an office”
Most people can enroll in Medicare entirely online through your Social Security account at ssa.gov, without ever visiting an office in person. Visiting a field office is available if you prefer in-person help.
Also asked as: “how do I add Part B to my existing Medicare”
If you already have Part A but delayed Part B, typically because of employer coverage, you can enroll in Part B online through your Social Security account, by phone, or in person at a Social Security field office.
Also asked as: “will Medicare pay for a walker or wheelchair”
Yes — Original Medicare Part B covers durable medical equipment, including wheelchairs, walkers, and hospital beds, when a doctor prescribes it as medically necessary and it’s obtained through a Medicare-enrolled supplier.
Also asked as: “does Original Medicare have a spending cap”
Every Medicare Advantage plan is required to include an annual limit on how much you’ll pay out of pocket for Part A and Part B covered services. Original Medicare has no such limit on its own.
CMS sets Medicare Advantage and Part D plan service areas at the county level. Insurance companies decide which counties to offer a plan in based on their own network and cost calculations, which means two people a few miles apart in different counties can have a genuinely different set of plans to choose from — even within the same metro area. Your independent Medicare agent can pull up the specific plans available in your county so you’re comparing your actual options.
Medicare decisions deserve careful planning, whether you’re turning 65, retiring soon, moving to Foster City, or leaving employer coverage.
Reach out today for a free, no-pressure Medicare plan comparison based on your ZIP code (94404), preferred doctors, and prescriptions — every consultation is handled by phone or video, on your schedule.
Rodney Powell is an independent Medicare broker licensed in Texas and 36+ additional states nationwide, with carrier appointments including Physicians Mutual, United American, UnitedHealthcare (AARP), Humana, Aetna, Healthspring, Devoted, and KelseyCare. Rodney partners with HR and benefits professionals, CPAs, financial planners, real estate professionals, elder law attorneys, and senior group leaders to help people navigate Medicare enrollment with confidence. Learn more about Rodney →
Last Reviewed: July 6, 2026
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