Medicare buys the wheelchair but not the ramp to get it in the door. Here is how San Diego families get equipment covered and where to turn for the rest.
By Diane Whitfield, CSA · September 09, 2026
Medicare Part B covers durable medical equipment when a treating doctor documents that it is medically necessary and the item meets four conditions: it is durable enough to withstand repeated use, it is used for a medical reason, it is not useful to someone who is not sick or injured, and it is generally used in the home. That last phrase does more work than families expect. It is why a walker is covered and a stairlift is not.
When the item qualifies and the supplier accepts assignment, Medicare pays 80 percent of the approved amount after the annual Part B deductible and the family pays the remaining 20 percent. A Medigap policy usually absorbs that coinsurance. A Medicare Advantage plan will have its own cost-sharing and, importantly, its own network — using an out-of-network supplier is one of the more common ways a family ends up with a bill they did not expect.
Two paperwork details cause most denials. The order has to come from the treating physician or another qualifying practitioner and has to be on file before delivery, and the supplier has to be enrolled in Medicare. A supplier that is not enrolled cannot bill Medicare at all, no matter how appropriate the equipment is. Medicare's supplier directory at Medicare.gov lets you confirm both enrollment and whether a supplier accepts assignment before you order.
Commonly covered items include standard and rolling walkers, canes and crutches, manual wheelchairs, power wheelchairs and scooters when a mobility evaluation supports them, hospital beds, patient lifts, commode chairs, oxygen equipment and supplies, CPAP machines, blood sugar monitors and test strips, and nebulizers.
The list of things Medicare does not cover is where families get caught. Grab bars, wheelchair ramps, stairlifts, walk-in tubs, widened doorways and roll-in showers are all treated as home modifications rather than medical equipment, and Part B does not pay for any of them. Neither does it pay for most bathroom safety equipment, incontinence supplies, or a second piece of equipment that duplicates one it already bought.
It is also worth understanding that some equipment is rented rather than purchased. For many capped-rental items, Medicare pays a monthly rate and ownership transfers to the beneficiary after thirteen months of continuous rental. Oxygen equipment follows its own separate rules. None of this changes what a family pays month to month, but it changes what happens if a parent moves, enters a facility, or dies mid-rental — so it is worth asking the supplier, in writing, whether an item is a purchase or a rental before it arrives.
Medi-Cal also covers durable medical equipment, and for a dual-eligible parent — someone enrolled in both Medicare and Medi-Cal — Medicare bills first and Medi-Cal can pick up the coinsurance. Medi-Cal frequently requires prior authorization, submitted by the provider, and that step is where requests stall. If a family is waiting with no explanation, the question to ask the prescribing office is whether the authorization request has actually been submitted and what date it went out.
Medi-Cal managed care plans in California also offer a set of optional services under CalAIM known as Community Supports, and one of them is Environmental Accessibility Adaptations — home modifications. That is the category that can, in the right circumstances, cover a ramp, grab bars, or a bathroom adaptation that Medicare will not touch. It is not an entitlement, availability varies by plan, and it has to be requested through the parent's Medi-Cal managed care plan rather than through a doctor. Ask the plan directly whether it offers the benefit and what the referral process is.
For families who are not on Medi-Cal, the practical alternatives are equipment reuse and lending programs, veterans' benefits, and local nonprofits. San Diego County Aging & Independence Services at (800) 339-4661 is the county's front door for finding what currently exists, and 2-1-1 San Diego can connect families to loan closets and low-cost sources. A veteran enrolled in VA health care should ask their VA primary care team about prosthetics and sensory aids before buying anything privately — the VA San Diego Healthcare System in La Jolla issues a broad range of equipment directly, and the eligibility rules are different from Medicare's.
Equipment questions often surface at the same moment a family is weighing whether a parent can stay home. It is worth separating the two. A hospital bed and a patient lift can make staying home workable; they cannot supply the person who operates them at two in the morning. When the equipment list grows faster than the help available to use it, that is usually the real signal.
If a move is being considered, ask communities how they handle resident-owned equipment. Will a power wheelchair fit through the apartment's bathroom door and turn around inside it? Does the community allow a hospital bed in place of its standard furniture, and who moves it in? Is there a policy on oxygen concentrators? Some California assisted living communities, licensed as Residential Care Facilities for the Elderly, hold restricted health condition waivers that let them serve residents with needs others cannot, and some do not — that distinction is worth asking about directly.
Before touring, look up any facility's licensing record and complaint history through the Community Care Licensing Division at ccld.dss.ca.gov. It takes a few minutes and occasionally reorders a shortlist.
Three steps. Ask the treating physician's office to confirm that a written order for any needed equipment is on file and dated before delivery. Verify the supplier is Medicare-enrolled and accepts assignment using the directory at Medicare.gov, or check the Medicare Advantage plan's network if the parent has one. And if the barrier is a ramp, a grab bar, or a bathroom that no longer works, call the Medi-Cal managed care plan about Community Supports rather than assuming the answer is no.
Free, unbiased help with the Medicare side of this is available through HICAP, reachable in this county through Aging & Independence Services at (800) 339-4661. If the larger question underneath is whether home is still the right place, local advisors who know San Diego County communities can walk through that with you at no cost to the family.
Free, no-pressure call. We work for families, not facilities.