California Care Compass

Updated 2026-05-21

Services & Treatments · A field guide entry

Dialysis coverage under Medicare and Medi-Cal: what California families need to know.

Medicare covers dialysis for people of any age who have end-stage renal disease, through a special ESRD entitlement. Coverage includes in-center hemodialysis, home dialysis (peritoneal dialysis or home hemodialysis), training, supplies, and medically necessary transportation. A 30-month coordination period applies when the patient also has an employer group health plan. Medi-Cal covers most of what Medicare leaves behind in California. Kidney transplant patients keep Medicare for 36 months post-transplant if they had no other entitlement.

The four-line answer

What it is
Renal replacement therapy for end-stage renal disease (ESRD), delivered as in-center hemodialysis, home hemodialysis, or peritoneal dialysis, three or more sessions per week for most patients.
Who qualifies
Medicare covers ESRD patients of any age who meet the work-credit, spouse, or dependent rules. CKD that has not progressed to ESRD does not qualify on its own.
What Medicare pays
Part B pays 80 percent of the dialysis bundled rate after the deductible. Part A pays for any inpatient dialysis stay. Supplies, training, and most ESRD drugs are included in the bundle.
What Medi-Cal pays
In California, full-scope Medi-Cal covers the 20 percent Medicare coinsurance, transportation, and dialysis-related services for dual-eligible patients. Medi-Cal also covers dialysis for undocumented Californians under state-funded coverage.

How Medicare entitlement works for kidney failure

Medicare is normally an age-65 program, with a separate pathway for people under 65 who have been receiving Social Security Disability for 24 months. End-stage renal disease is the third pathway, and it is the one that surprises most California families. A 52-year-old whose kidneys have failed qualifies for Medicare just as cleanly as a 70-year-old, provided they have the work credits (or are the spouse or dependent of someone who does).

The trigger is end-stage renal disease, meaning permanent kidney failure that requires regular dialysis or a transplant. Chronic kidney disease at earlier stages, even stage 4, does not qualify on its own. The clinical definition matters: ESRD is a Medicare term, not just a medical one.

What Medicare pays for dialysis

Part B pays 80 percent of the Medicare-approved bundled rate for each dialysis session, after the annual deductible. The bundle covers the treatment itself, the dialysis-related drugs, the routine labs, and most supplies. Part A covers any inpatient stay where dialysis is delivered as part of a hospital admission. The patient is responsible for the 20 percent coinsurance unless a Medigap, Medicare Advantage plan, or Medi-Cal picks it up.

Home dialysis has the same 80 percent coverage. Medicare pays for the machine, the supplies, the dialysate solutions, and the training. A monthly capitation payment goes to the dialysis center for medical oversight. Home dialysis is the cheaper option for Medicare and the more flexible option for the patient, and it is the direction federal policy is steadily pushing.

The 30-month coordination period

If your parent has an employer group health plan (their own or a spouse’s) at the time dialysis starts, that plan pays primary for the first 30 months of Medicare entitlement. Medicare pays secondary. After 30 months, Medicare flips to primary and the employer plan pays secondary.

For families this matters in two ways. First, the employer plan often pays better than Medicare during those 30 months, especially in California where some employer plans cover the full dialysis bill without a coinsurance. Second, the cost of Medicare Part B (the monthly premium) starts the moment coverage begins, even if the employer plan is paying primary. Some families defer Medicare Part B enrollment during the coordination period if they have strong employer coverage, then enroll just before month 30. This decision should be run past a HICAP counselor, not made alone.

In-center hemodialysis versus home dialysis

In-center hemodialysis is what most California patients start on. The patient travels to a dialysis center three times a week for sessions lasting three to four hours. Transportation is often the limiting factor; Medi-Cal covers non-emergency medical transport for dual-eligible patients, and most California metros have dialysis-specific transport services.

Home dialysis comes in two forms. Peritoneal dialysis uses the lining of the abdomen as the filter; the patient (or a care partner) performs exchanges several times a day or runs an overnight cycler. Home hemodialysis uses a smaller machine at home, with the patient dialyzing five or six shorter sessions per week. Both require a care partner in most setups and a training period of three to six weeks.

Home dialysis is associated with better quality of life, more dietary flexibility, and lower hospitalization rates in many studies. It is not the right fit for every patient, particularly those without a reliable home environment or a willing care partner.

What Medi-Cal adds in California

Full-scope Medi-Cal covers the 20 percent Medicare coinsurance for dual-eligible patients, the Part B deductible, and non-emergency medical transportation to and from dialysis. For California families that means dialysis is effectively free for a Medi-Cal-enrolled senior.

California also covers dialysis for undocumented residents through a state-funded ESRD pathway, separate from federal Medicaid. Eligibility runs through county Medi-Cal offices. Hospital social workers and dialysis center admissions teams are usually the most reliable guides.

The CKD-to-ESRD transition

Most patients arrive at dialysis after years of chronic kidney disease. The transition from CKD stage 4 (advanced disease) to ESRD (kidney failure) is one of the most important planning moments in a kidney patient’s life. Decisions made in the year before dialysis affect outcomes for years after.

Two decisions tend to dominate. The vascular access decision (placing an arteriovenous fistula three to six months before dialysis is needed, rather than starting on a temporary catheter) substantially reduces infection and mortality risk. The modality decision (in-center, home HD, or PD, or pursuing transplant evaluation) shapes daily life. A nephrology social worker in a California academic center is the right partner for both.

Kidney transplant and Medicare

Medicare covers kidney transplant surgery, the hospital stay, the immunosuppressant medications, and post-transplant care. For ESRD-only Medicare beneficiaries (no age or disability entitlement), Medicare continues for 36 months after a successful transplant. After 36 months, coverage ends unless the patient is 65 or qualifies through disability.

This 36-month cliff is one of the longstanding gaps in the program, and it disproportionately affects working-age patients who received transplants in their 40s and 50s. California families in this situation should engage the transplant center’s social work team early. Medi-Cal coverage, Covered California marketplace plans, and employer plans are all in play depending on the situation.

Practical next steps for a California family

  1. If dialysis is on the horizon, get the patient seen by a nephrologist at least 12 months before kidney failure is expected. Vascular access placement matters.
  2. Apply for Medicare under the ESRD entitlement as soon as the nephrology team recommends. The Social Security Administration handles enrollment.
  3. Decide on modality (in-center, home HD, PD) deliberately, with the dialysis center’s social worker and the patient’s care partner.
  4. If the patient has employer coverage, model the 30-month coordination period before deciding when to start paying Medicare Part B premiums.
  5. Apply for full-scope Medi-Cal if the patient is income-eligible. The 20 percent coinsurance and transportation matter every week.
  6. If transplant is a possibility, ask for a referral to a UCLA, UCSF, Stanford, or other California transplant center early. Evaluation timelines are long.

Common misconceptions to clear up

“My parent is only 55, they can’t get Medicare.” They can, through the ESRD entitlement, the moment they begin dialysis or receive a transplant.

“Medicare won’t pay for home dialysis.” It will, including the machine, the supplies, and the training.

“Once you have a transplant, Medicare is permanent.” Only if the patient has another entitlement (age 65 or disability). ESRD-only Medicare ends 36 months after a successful transplant.

“Transportation to dialysis is not covered.” For Medi-Cal members, including dual-eligible patients, it is. Ask the dialysis center about the local non-emergency medical transportation broker.

Related services and next steps

This guide explains coverage and eligibility, not medical advice. Talk to a licensed clinician about care decisions. California Care Compass does not place referrals on Services & Treatments pages.

Common questions

7 entries

Does my parent qualify for Medicare just because they need dialysis?

Almost always, yes. Medicare's ESRD entitlement opens the door for people of any age who have a permanent kidney failure requiring dialysis or transplant. The qualifying person must have enough Social Security or Railroad Retirement work credits, or be the spouse or dependent of someone who does. Once approved, Medicare pays as the primary or secondary insurer depending on the 30-month coordination period.

When does Medicare coverage actually start for ESRD?

For in-center hemodialysis, Medicare coverage usually begins the first day of the fourth month of dialysis. For home dialysis training that begins in the first three months, Medicare can start the first month of dialysis. For kidney transplant, Medicare can begin the month of admission for a successful transplant. The four-month wait can be avoided entirely by starting a home dialysis training program early.

What is the 30-month coordination period?

If your parent has an employer group health plan when they start dialysis, that employer plan pays primary for the first 30 months, and Medicare pays secondary. After 30 months, Medicare becomes primary and the employer plan pays secondary. This rule matters because some employer plans cover dialysis at very high rates, and families sometimes hold off on Medicare enrollment until the 30 months are up. In California, talking to a HICAP counselor before making this call is worth the time.

Does Medicare cover home dialysis?

Yes. Medicare covers both peritoneal dialysis (PD) and home hemodialysis (home HD), including the machine, the supplies, the dialysate, training for the patient and a care partner, and a monthly medical visit. Home dialysis is usually cheaper for Medicare than in-center care and gives the patient more schedule flexibility. The training period is intensive: typically three to six weeks of daily sessions at a training center before the patient is cleared to dialyze at home.

What does the dialysis bundled payment cover?

Medicare pays dialysis centers a single bundled rate per session that covers the dialysis treatment itself, the dialysis-related drugs (erythropoietin, iron, vitamin D analogs, phosphate binders dispensed in the unit), routine lab tests, and most supplies. Things outside the bundle: hospital admissions, non-dialysis medications, vascular access surgery, and transportation. The patient pays 20 percent of the bundled rate or their Medigap or Medi-Cal covers it.

What does Medi-Cal add for a California patient on dialysis?

Medi-Cal in California covers the 20 percent Medicare coinsurance, the Part B deductible, non-emergency medical transportation to and from dialysis (a major benefit for patients who do not drive), and dialysis-related drugs not in the bundle. For full-scope Medi-Cal members, dialysis is effectively free. California also covers dialysis for undocumented residents under the state-funded ESRD pathway, separate from federal Medicaid rules.

What happens to Medicare after a kidney transplant?

Medicare continues for 36 months after a successful kidney transplant for patients whose only Medicare entitlement was ESRD. During those 36 months, Medicare covers the immunosuppressant drugs and post-transplant care. After 36 months, if the patient is not yet 65 and has no disability entitlement, Medicare ends, which is one of the longest-standing problems in the program. Patients in this position should plan early with their transplant social worker and a Medi-Cal eligibility worker.

Sources

  1. 01Centers for Medicare & Medicaid Services · Medicare coverage of kidney dialysis and kidney transplant services · accessed 2026-05-21
  2. 02Medicare.gov · Dialysis services and supplies · accessed 2026-05-21
  3. 03California Department of Health Care Services · End Stage Renal Disease (ESRD) program · accessed 2026-05-21
  4. 04National Institute of Diabetes and Digestive and Kidney Diseases · Kidney failure: choosing a treatment that's right for you · accessed 2026-05-21
  5. 05Social Security Administration · Medicare for people with end-stage renal disease · accessed 2026-05-21
  6. 06KFF · Medicare and end-stage renal disease · accessed 2026-05-21