A normal family of four

You pay all year. Then someone needs a knee.

Nobody is sick yet. The premium already came out of the paycheck. The deductible is still waiting.

Out of your check$6,850
then
The whole family plan$26,993

Kaiser Family Foundation 2025 averages. Not a rare horror story. Then someone needs a knee, and the hospital has four prices for the same operation.

1. Before anyone is sick

A typical family job plan in 2025. The premium is what you pay every month whether anyone is sick. The deductible is extra — you still owe it the day you walk in.

Employer share, family average$20,143
HSA / deductible, family average$6,912
You pay in (your premium)$6,850
Total family premium (you + job)$26,993

The family deductible on a high-deductible plan is about $6,912. That is on top of the $6,850 you already pay in premiums. A health-savings family deductible averages $4,932. The deductible is not the premium. You pay both.

Most people on a job plan do not get $26,993 of care back. The plan paid about $1,369 for the typical privately insured adult (MEPS 2021). Four adults still come in far under the family premium. See what those premiums would be worth invested and the sickest 5%, who account for most of the spending.

2. Then you need a knee replacement

Four prices for the same operation. The hospital asks for a huge number. Insurance does not pay that. Paying cash is often cheaper than the “negotiated” insurance price.

Hospital list$41,632
vs
Cash posted price$17,679
Price the insurer is asked to pay$41,632
What actually gets paid after the ask$29,737

The hospital posts a giant list price, then bills that same ask to the insurer. After the fight, you and the plan together pay $29,737. The cash number is Surgery Center of Oklahoma’s public menu. The list and insurance numbers are modeled for a typical US community hospital.

You at the knee — who pays this surgery

Plan pays the hospital about $18,260. You pay about $11,477. Premiums are not in this stack — they are added in the year totals below.

Your deductible (first dollars)$6,912
Your 20% of the rest (coinsurance)$4,565
You pay the hospital$11,477
Plan pays the hospital$18,260
Total for this knee (you + plan, no premiums)$29,737
Cash-pay posted, for comparison$17,679

Deductible + 20% = you. You + plan = $29,737, which is the allowed amount — what actually gets paid for the replacement. The 20% is modeled. Deductible is the Kaiser Family Foundation average.

All year — with premiums vs without

Without premiums is only this knee. With premiums is what got paid in all year: the family subscription plus this surgery.

Without premiums — this knee only (you + plan)$29,737
Your premium all year$6,850
Employer premium all year$20,143
With premiums — paid in all year (family premium + this knee)$56,730
Your pocket all year (your premium + you at the knee)$18,327

$29,737 is the surgery. $26,993 is the year of premiums. Together $56,730 is what got paid in for coverage plus this knee. Your own checks are $18,327. Cash for the same knee is $17,679 with $0 premium.

Other ways to buy the same knee

Employer-sponsored insurance. The American default.

Job-based (18–64)

Hospital list ~$41,632. They bill the insurer that list. After the ask, the contracted total (you + plan) is ~$29,737. On the average family deductible you pay ~$11,477 at the knee; the plan pays ~$18,260. Posted cash is $17,679.

Deductible

Family deductible on a high-deductible plan averages $6,912 (HDHP/HRA, Kaiser Family Foundation 2025) — the ~$6,800. A true HSA-qualified family deductible averages $4,932. Deductible is on top of premiums, not instead of them.

Who is in network

PPO/HMO directory. Call the office. The PDF is often wrong.

How they know the price

You do not know. Transparency files exist. Humans cannot use them.

Open enrollment

Pick PPO vs HDHP/HSA. You are buying a deductible and a network, not a price list.

Split the premium

Family of four, 2025 average $26,993: you $6,850, employer $20,143. That is before a single claim.

Then the deductible

Average HDHP/HRA family deductible $6,912. The first dollars of a real claim are still you. The savings account is not the deductible.

Find in-network

Insurer portal → directory → call the surgeon’s office and the facility separately. Anesthesia is often a third TIN.

Guess the price

The chargemaster is the ask. The EOB is what insurance actually paid. Cash is a third number.

Pay twice

Premiums all year ($6,850), then ~$11,477 at the knee. Posted cash is $17,679 with $0 premium.

The map

Eight stages, four payers. Job column is the average family deductible (~$6,900), not the $10k cliff. Medicare Part B year is $2,435.

StageCashMedicaidMedicareJob (avg family)
How you got hereNo plan. Or job that does not offer one.Income / category eligibility. State decides.Age 65+ or SSDI. Part A usually earned.Employer offers ESI. You are 18–64.
Pay every month$0 premium. You are the stop-loss.$0 in most states. Taxes fund the plan.Part B $202.90/mo (2026). Part A usually $0.You $6,850/yr family. Employer $20,143. Kaiser Family Foundation 2025.
Deductible / HSANo deductible. Full price at the door.Usually $0–$4 copay. No $10k cliff.Part A $1,736/benefit period. Part B $283 then 20%.Average HDHP/HRA family deductible $6,912 — the ~$6,800. You still owe this when you use care.
Need a procedureYou shop or you walk into the emergency department.You need a Medicaid-enrolled clinician.Any provider who takes Medicare (Original).PCP referral, prior auth, in-network or else.
Who is in networkAnyone who will take the card.State directory. Many specialists will not.Original: most hospitals. Medicare Advantage: a list.Insurer directory. Often stale. Call the office anyway.
What will it costOnly if you ask for the cash menu — not the chargemaster.You usually do not need a price. $0 at the door.You find out on the MSN/EOB. Lookup tools exist, unused.Estimate tools lie. MRFs are unusable. EOB is the price.
At the door (knee)$17,679 posted cash at Surgery Center of Oklahoma — or ~$44,652 rack.Plan allowed ~$12,135. You: ~$0.Allowed ~$15,558. You: Part A $1,736 if inpatient.Hospital list ~$41,632. Insurer allowed ~$29,737. You pay ~$11,477 (avg family deductible + 20%).
The bill afterReceipt. Done — if it was a real cash quote.Rare patient bill. Fight is access, not the EOB.MSN. Then Medigap or Advantage theater.EOB weeks later. Balance-bill risk if anyone was OON.

Premiums, deductibles, cash menu sourced Chargemaster, billed, allowed, 20% coinsurance modeled See evidence. Shop the knee on Surgery / Knee.