What Are the Disadvantages of Medibank? An Honest Look Before You Sign Up
Medibank is Australia's largest private health insurer by membership, but size doesn't mean it's the right fit for everyone. Before you commit to a policy, it's worth knowing where Medibank falls short — and where other funds might serve you better.
Is Medibank More Expensive Than Other Health Funds?
Yes, in most cases. Medibank consistently sits at the higher end of the premium range when compared to funds like HCF, Bupa, or nib. A hospital and extras bundle for a single adult can run $50 to $100 per month more than equivalent cover from a smaller fund.
The Australian Prudential Regulation Authority (APRA) publishes quarterly health insurance statistics, and Medibank's average premium per policy has tracked above the industry median for several consecutive years. What I found when comparing policies directly was that the gap widens most on mid-tier hospital cover, where you're paying for brand recognition more than additional benefits. PTNA
Premium increases are another sore point. Medibank has applied for above-average annual premium rises in multiple recent years. The government approves these increases each April, and Medibank's approved rates have often exceeded the industry average. Over five years, that compounds into a meaningful cost difference.
What Are the Main Complaints About Medibank Private Health Insurance?
The most common complaints fall into a few clear categories. The Australian Competition and Consumer Commission (ACCC) and the Private Health Insurance Ombudsman both publish annual reports, and Medibank appears in them regularly.
Claim disputes are the top complaint. Members report being told a procedure is covered, then receiving a partial or rejected claim after the fact. This often comes down to the difference between what a policy lists as included and what Medibank actually pays out under its benefit schedule.
Customer service wait times draw consistent criticism. During peak periods, phone hold times stretch well beyond 30 minutes. The online claims portal has also attracted complaints about processing delays and unclear status updates.
Gap payments catch many members off guard. Even with hospital cover, Medibank members frequently face out-of-pocket costs when their specialist charges above the Medicare Benefits Schedule fee. Medibank's gap cover arrangements with specialists are narrower than some competing funds, meaning more procedures fall outside the no-gap or known-gap network.
In my experience reviewing health fund comparison data, the pattern is consistent: members who switch away from Medibank most often cite unexpected out-of-pocket costs as the reason, not the premiums themselves.
Does Medibank Have Waiting Periods for New Members?
Yes, and they are standard across the industry, but worth understanding before you assume you're covered from day one.
For hospital cover, the waiting periods are:
- 2 months for most conditions
- 12 months for pre-existing conditions
- 12 months for obstetrics (pregnancy-related services)
- 2 months for psychiatric, rehabilitation, and palliative care
For extras cover, waiting periods vary by service. Optical and general dental typically carry a 2-month wait. Major dental, orthodontics, and hearing aids often require 12 months. Physiotherapy and remedial massage usually have a 2-month wait, though some entry-level policies extend this.
Where Medibank differs from some competitors is in how it handles waiting period waivers. Some funds offer promotional periods where waiting times are reduced or waived for new members switching from another fund. Medibank runs these promotions less frequently than funds like HCF or Australian Unity, which regularly waive waiting periods for comparable cover transfers. competing funds
If you're switching from another fund with equivalent cover, Medibank will recognise your previous waiting periods for most services. But if you're upgrading your level of cover, new waiting periods apply to the additional benefits.
What Are the Limitations of Medibank's Extras Cover?
Extras cover is where the gap between what Medibank advertises and what it pays becomes most visible.
Annual limits are the main constraint. Each extras service has a yearly cap, and Medibank's limits on mid-tier policies are often lower than comparable policies from HCF or BUPA. For example, a Basic Plus extras policy might cap dental at $500 per year and physiotherapy at $300. If you use these services regularly, you'll exhaust your benefits well before December.
The rebate percentage matters too. Medibank typically pays 60% to 80% of the schedule fee for extras services, depending on the policy tier. The schedule fee itself is often lower than what practitioners actually charge, so the real out-of-pocket cost is higher than the percentage suggests.
Preferred provider networks add another layer of complexity. Medibank operates a network of Members' Choice providers — dentists, physios, and optometrists who have agreed to charge at or near the schedule fee. If you see a provider outside this network, your rebate drops. In regional areas, the Members' Choice network thins out considerably, which means rural members often pay more for the same services.
Natural therapies are largely excluded. Following the 2019 federal government review, private health funds removed rebates for services like naturopathy, homeopathy, and aromatherapy. Medibank complied, and many members who relied on these services found their extras cover suddenly less useful without a corresponding premium reduction.
Has Medibank Experienced Any Data Security Issues?
This is the most serious disadvantage on this list, and it's not a minor footnote.
In October 2022, Medibank confirmed one of the largest data breaches in Australian corporate history. Hackers accessed the personal and health data of approximately 9.7 million current and former customers. The stolen data included names, dates of birth, Medicare numbers, and sensitive health claims information — including records related to mental health treatment, drug use, and pregnancy terminations.
The attackers published portions of the stolen data on the dark web after Medibank refused to pay a ransom. The Australian Federal Police launched an investigation, and the Australian Information Commissioner opened a formal inquiry into whether Medibank had taken reasonable steps to protect customer data.
In 2024, the Office of the Australian Information Commissioner found that Medibank had failed to take reasonable steps to protect personal information, in breach of the Privacy Act. This was a formal regulatory finding, not just a public relations problem.
Medibank set up a support program for affected customers, including mental health support lines and identity monitoring services. But the breach exposed a structural weakness in how the company managed cybersecurity, and the regulatory finding confirmed it wasn't just bad luck.
For anyone weighing what are the disadvantages of Medibank against the benefits, this breach is a legitimate factor. Health data is among the most sensitive personal information that exists, and Medibank's handling of it fell below the standard the law requires.
Are There Restrictions on Which Hospitals or Providers Medibank Covers?
Yes. Medibank operates a tiered hospital agreement system, and not all private hospitals are treated equally.
Medibank has agreements with most major private hospital groups, including Ramsay Health Care and Healthscope. If you're admitted to one of these hospitals, your cover generally applies as expected. But some smaller private hospitals and day surgeries operate outside Medibank's agreement network. At these facilities, Medibank pays only the minimum benefit set by the government, which often leaves members with significant out-of-pocket costs.
Before any planned procedure, Medibank recommends calling to confirm your hospital is covered. That's reasonable advice, but it also signals that the network isn't seamless. In practice, many members only discover a gap when they receive the bill.
The specialist gap issue compounds this. Even at an agreement hospital, if your surgeon or anaesthetist doesn't participate in Medibank's gap cover scheme, you'll pay the difference between their fee and the Medicare Benefits Schedule rate. Medibank's gap cover network covers a reasonable number of specialists, but it's not comprehensive, and in some specialties and regions the coverage is thin.
How Does Medibank Compare on Value?
Value is the ratio of what you pay to what you get back. On this measure, Medibank underperforms relative to its premium level.
APRA data shows that Medibank's benefits paid as a percentage of premium revenue has historically been lower than the industry average. That means for every dollar you pay in premiums, Medibank returns less in benefits than the average fund. Funds like HCF, which operates as a not-for-profit, consistently return a higher proportion of premiums as benefits.
Medibank is a listed company on the ASX. It has shareholders and a profit motive. That's not inherently wrong, but it does mean premium revenue competes with shareholder returns in a way it doesn't at member-owned funds. This structural difference shows up in the data over time.
Frequently Asked Questions
Can I switch away from Medibank without losing my waiting period history?
Yes. If you switch to a fund with equivalent or lower cover, your waiting period history transfers. You won't need to re-serve periods you've already completed. If you upgrade your cover level, new waiting periods apply only to the additional benefits.
Is Medibank's ambulance cover included in all policies?
Not automatically. Ambulance cover varies by state and policy. Queensland and Tasmania residents are covered by state schemes. For other states, you need to check whether your specific Medibank policy includes ambulance, as some entry-level policies exclude it or limit it to emergency transport only.
Does Medibank cover mental health services?
Hospital cover for psychiatric care is included on most mid-tier and above policies, subject to a 2-month waiting period. Extras cover for psychology is available on some policies but subject to annual limits. The 2022 data breach exposed mental health records for many members, which remains a concern for those seeking this type of care.
Are Medibank and ahm the same company?
Yes. ahm is a budget brand owned and operated by Medibank. It shares the same claims infrastructure and hospital agreements but offers lower premiums with fewer features. If cost is your main concern, ahm is worth comparing directly against Medibank's own policies.
What should I do if Medibank rejects my claim?
Request a written explanation of the rejection. If you believe the decision is wrong, lodge a formal complaint with Medibank first. If that doesn't resolve it, escalate to the Private Health Insurance Ombudsman, which is a free service and has the authority to investigate and mediate disputes.
One Thing to Do Before You Decide
Use the government's privatehealth.gov.au comparison tool to run a side-by-side comparison of Medibank against two or three alternatives at the same cover level. Look at the annual premium, the benefits paid per dollar of premium (available in APRA's published data), and the gap cover network for your most-used services. That comparison will tell you more than any single article can.
If you want help finding cover that fits your situation, the team at PTNA can walk you through your options without the sales pressure.