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On this page· 5 sections
  1. Original Medicare: no network, but read the fine print on acceptance
  2. Medicare Advantage: networks and, sometimes, referrals
  3. Checking before you commit
  4. Common questions
  5. References

Medicare · Cornerstone

Finding a doctor with Medicare, networks and referrals

Last reviewed June 11, 20262 min readBy the Goodsurance editorial team Reviewed by the Goodsurance editorial team

How you find and pay a doctor depends almost entirely on which path you chose, and provider access is one of the biggest practical differences between Original Medicare and Medicare Advantage. It is also one of the most common sources of confusion at the point of care, when "do you take my insurance" turns out to have a more complicated answer than yes or no. Here is how each path works and what the billing terms actually mean.

1Original Medicare: no network, but read the fine print on acceptance

The defining feature of Original Medicare is that there is no network. You can see any doctor, specialist, or hospital in the country that accepts Medicare, without a referral. For people who travel, split the year between two states, or want a specific specialist, this freedom is the main reason they choose this path.

The nuance is in what "accepts Medicare" means, because there are three postures a provider can take, and they change your bill. The practical move is to ask not just "do you take Medicare" but "do you accept assignment," because that second question is the one that tells you what you will actually pay.

Accepts assignment
  • Medicare's approved amount is full payment
  • You pay your normal share, nothing extra
Non-participating
  • Can add a limited excess charge
  • A Medigap plan can cover it
Opted out
  • Bills you privately by contract
  • Medicare pays nothing, ask directly

2Medicare Advantage: networks and, sometimes, referrals

Medicare Advantage plans work more like the employer coverage most people had before retirement: there is a network of contracted providers, and your costs and access depend on staying in it. How strict that is depends on the plan type, HMO plans generally cover only in-network providers except for emergencies and often require referrals to specialists, while PPO plans let you go out of network at a higher cost and usually do not require referrals.

Because the network is the plan, the single most important step before choosing an Advantage plan is confirming that your doctors and your preferred hospital are in it, and that the drug list covers your medications. Networks can also change from year to year, so a plan that included your doctor last year may not this year.

3Checking before you commit

Whichever path you are on, verify rather than assume. Medicare's Care Compare tool at Medicare.gov lets you look up providers, and Advantage plans publish provider directories. The catch with any directory is that it can be out of date, so the reliable step is to call the office directly. Five minutes on the phone prevents the most common and frustrating surprise in this whole area, finding out at the front desk that the answer changed.

Verify before you decide

  • Are your doctors and hospital in the current directory?

    Directories go out of date; check this year's

  • Does the plan's drug list cover your medications?

    For Advantage and Part D plans

  • Call the office with two questions

    Do you accept assignment, and are you taking new Medicare patients

Common questions about Medicare

Quick answers to common questions

Tap any question to expand. Each question links to a fuller standalone answer.

Does Medicare cover durable medical equipment?

Yes.

Medicare Part B covers durable medical equipment (DME): reusable medical gear your doctor prescribes for use at home, such as wheelchairs, walkers, hospital beds, oxygen equipment, CPAP machines, and blood sugar monitors. You pay 20% of the Medicare-approved amount after the $283 Part B deductible in 2026, and Medicare pays the other 80%. To be covered, the item must be ordered by a Medicare-enrolled doctor and supplied by a Medicare-enrolled supplier, and some items are rented rather than bought. Equipment meant mainly for use outside the home, or only for comfort or convenience, is not covered.

Full answer →
Does Medicare cover mental health services?

Yes.

Medicare covers mental health care across its parts in 2026. Part B covers outpatient services like therapy, counseling, and visits with psychiatrists, psychologists, and clinical social workers, and since 2024 it also covers marriage and family therapists and mental health counselors. You pay 20% of the Medicare-approved amount after the $283 deductible, and one depression screening each year is free. Part A covers inpatient mental health care, with a lifetime limit of 190 days in a freestanding psychiatric hospital. Part D covers most mental health medications. Many of these services are also available by telehealth, and Medicare Advantage plans cover at least the same benefits.

Full answer →
Does Medicare cover vision care?

Mostly no for routine care.

In 2026, Original Medicare does not cover routine eye exams for glasses or contact lenses, and it does not pay for the glasses or contacts themselves. It does cover some medical eye care: yearly glaucoma screenings for people at high risk, diabetic retinopathy exams, treatment for eye diseases, and cataract surgery (including one pair of standard glasses or contacts afterward). For those covered services you pay 20% after the $283 Part B deductible. Many Medicare Advantage plans add a routine vision benefit covering eye exams and an allowance for glasses.

Full answer →
Does Medicare cover physical therapy?

Yes.

Medicare Part B covers outpatient physical therapy that is medically necessary to treat your condition. You pay 20% of the Medicare-approved amount after the yearly Part B deductible ($283 in 2026). There is no longer a hard dollar cap on therapy, but once your physical and speech therapy together pass $2,480 in 2026, your therapist must add a note (called a KX modifier) confirming you still need care. Claims above $3,000 may be reviewed for medical necessity. Part A covers physical therapy you receive as a hospital inpatient or in a skilled nursing facility. A doctor or therapist must set up and regularly review your plan of care.

Full answer →
Does Medicare cover chiropractic care?

Partly.

Medicare Part B covers one specific chiropractic service: manual manipulation of the spine to correct a subluxation (when one or more bones of the spine are out of position) that a doctor confirms is medically necessary. You pay 20% of the Medicare-approved amount after the $283 Part B deductible in 2026. Medicare does not cover other services a chiropractor might offer, such as X-rays, massage therapy, acupuncture, or routine wellness visits, so you would pay the full cost for those. Some Medicare Advantage plans include extra chiropractic or wellness benefits beyond this.

Full answer →
Does Medicare cover ambulance services?

Yes, in limited situations.

Medicare Part B covers emergency ambulance transportation when traveling any other way could endanger your health, taking you to the nearest appropriate hospital or facility. You pay 20% of the Medicare-approved amount after the $283 Part B deductible in 2026. Air ambulance is covered only when ground transport cannot reach you or would take too long. Non-emergency ambulance trips, for example to dialysis, are covered only when a doctor provides a written order stating they are medically necessary. Medicare does not cover ambulance rides taken purely for convenience.

Full answer →
Does Medicare cover skilled nursing facility care?

Yes, on a short-term basis.

Medicare Part A covers skilled nursing facility (SNF) care after a qualifying inpatient hospital stay of at least 3 days, when you need daily skilled care like nursing or therapy. In 2026 you pay $0 for days 1 through 20 of each benefit period, $217 per day for days 21 through 100, and all costs after day 100. Coverage is for skilled care while you recover, not for long-term or custodial care (help with daily activities like bathing or dressing), which Medicare does not cover. Long-term nursing home care is generally paid through Medicaid or private funds.

Full answer →
Does Medicare cover hearing aids?

No, not under Original Medicare.

In 2026, Original Medicare (Parts A and B) does not pay for hearing aids or the exams to fit them. Part B does cover diagnostic hearing and balance exams when your doctor orders them to help diagnose or treat a medical condition, and for those you pay 20% after the $283 deductible. Many Medicare Advantage plans, however, include a hearing benefit that helps pay for routine hearing exams and hearing aids, often through a specific network or allowance. If hearing coverage matters to you, it is worth comparing Advantage plans or a standalone hearing plan.

Full answer →
Does Medicare cover home health care?

Yes, when you qualify.

Medicare Parts A and B cover home health care if a doctor certifies that you are homebound (leaving home takes a major effort) and need part-time skilled care, such as skilled nursing, physical therapy, occupational therapy, or speech therapy. A Medicare-certified home health agency must provide the care under a plan your doctor reviews. You pay $0 for covered home health visits in 2026, and 20% for any durable medical equipment. Medicare does not cover 24-hour home care, meal delivery, or homemaker services like cleaning when that is the only care you need.

Full answer →
Does Medicare cover diabetes supplies and testing?

Yes.

In 2026 Medicare covers most diabetes care across two parts. Part B (outpatient care and equipment) covers blood sugar monitors, test strips, lancets, and continuous glucose monitors (CGMs) as durable medical equipment, plus diabetes screenings and a self-management training program. You pay 20% of the Medicare-approved amount after the $283 Part B deductible. Part D (drug coverage) covers insulin and related supplies like syringes, and in 2026 your insulin is capped at $35 for a month's supply. If you have a Medicare Advantage plan, it covers at least the same diabetes benefits, sometimes with added extras.

Full answer →
Which is better, Medigap or Medicare Advantage?

Neither is better for everyone; they suit different needs.

Medigap (also called Medicare Supplement, a private policy that pairs with Original Medicare) lets you see any doctor nationwide who accepts Medicare with no network and very predictable out-of-pocket costs, but you pay a monthly Medigap premium and add a separate Part D drug plan. Medicare Advantage (Part C, your Medicare benefits through a private plan) often has a lower or $0 plan premium, bundles drug coverage and extras like dental and vision, and caps your yearly out-of-pocket costs, but uses provider networks and may require prior approval. People who travel, want maximum doctor freedom, and prefer steady costs often lean Medigap; people who want low premiums, extras, and a network they are comfortable with often lean Medicare Advantage. With both, you still pay the Part B premium ($202.90 per month in 2026). To find out which fits your situation, reach out to a licensed Goodsurance advisor at 1-888-301-8091 (TTY 711), Mon to Fri 8 am to 5 pm PT.

Full answer →
Can I see out-of-network doctors on a Medicare Advantage PPO?

Yes.

A Medicare Advantage PPO (Preferred Provider Organization plan, where your Medicare benefits come through a private plan) lets you see doctors and hospitals outside the plan's network, but you usually pay more for out-of-network care than for in-network care. Staying in network keeps your costs lower, while going out of network is allowed and can be worth it if you want a specific provider. This flexibility is a key difference from a Medicare Advantage HMO (Health Maintenance Organization plan), which generally only covers in-network care except in emergencies. With a PPO, you also typically do not need a referral to see a specialist. Keep in mind the provider must accept the plan and Medicare. Emergency and urgent care are covered regardless of network on both plan types. The trade-off with a PPO is more freedom in exchange for generally higher costs than an HMO.

Full answer →

References

  1. Medicare.govProvider access under Original Medicare, assignment, and the Care Compare tool.
  2. CMS, Centers for Medicare & Medicaid ServicesParticipating, non-participating, and opt-out provider rules. cms.gov