📘 Insurance Basics
Health insurance has its own language — deductibles, copays, coinsurance, networks — and misunderstanding one term can cost you thousands. These guides explain every concept in plain English so you can choose the right plan and use it wisely.
Medicare Part B Coverage Explained: What's Covered, What's Not, and the 20% Problem
Medicare Part B covers doctor visits, outpatient care, and preventive services, but leaves you with 20% coinsurance forever. Learn costs, exclusions, and IRMAA surcharges for 2026.
Read guide →Medigap Guide 2026: Plans, Costs, and When to Enroll
Medigap (Medicare Supplement) plans cover the 20% Medicare doesn't pay. Compare Plans A, B, C, D, F, G, K, L, M, N—costs, coverage, and the best enrollment window for 2026.
Read guide →How to Read Your Explanation of Benefits (EOB)
An EOB is not a bill—but it tells you exactly what you owe. Learn every section, catch common errors, decode denial codes, and know when your EOB and bill don't match.
Read guide →All Insurance Basics Guides (38)
Medicare Part B Coverage Explained: What's Covered, What's Not, and the 20% Problem
Medicare Part B covers doctor visits, outpatient care, and preventive services, but leaves you with 20% coinsurance forever. Learn costs, exclusions, and IRMAA surcharges for 2026.
Medigap Guide 2026: Plans, Costs, and When to Enroll
Medigap (Medicare Supplement) plans cover the 20% Medicare doesn't pay. Compare Plans A, B, C, D, F, G, K, L, M, N—costs, coverage, and the best enrollment window for 2026.
How to Read Your Explanation of Benefits (EOB)
An EOB is not a bill—but it tells you exactly what you owe. Learn every section, catch common errors, decode denial codes, and know when your EOB and bill don't match.
Out-of-Pocket Maximum Explained: The Most Important Number in Your Plan
Your out-of-pocket maximum is the most you'll pay in a year for covered in-network care. Learn the 2026 ACA limits, what counts, what doesn't, and how to use it.
Plastic Surgery Insurance Coverage: What's Covered (2026)
38% of plastic surgery denials are overturned on appeal. Learn which procedures insurance must cover, how to document medical necessity, and how to appeal.
Open Enrollment 2026: Choose the Right Health Plan
Open enrollment for employers runs Nov 1–Dec 15, 2026. Learn how to compare HMO, PPO, HDHP, and EPO plans and avoid the 5 most costly mistakes.
Medigap Plans Explained: Medicare Supplement Guide (2026)
Medigap Plan G covers nearly all Medicare gaps for $100–$400/month. Compare Plans A–N, premiums, and Advantage vs. Medigap to find your best fit in 2026.
Medicare Part D Explained: Drug Coverage in 2026
Medicare Part D caps out-of-pocket drug costs at $2,000 in 2026. Learn formulary tiers, the late enrollment penalty, Extra Help, and how to appeal a denial.
Short-Term Health Insurance: 2026 Risks & Alternatives
Short-term health plans cost $100–$200/mo but exclude pre-existing conditions and ACA protections. See when they make sense and what alternatives exist in 2026.
Addiction Treatment Billing: Coverage & Costs (2026)
Federal parity law requires equal SUD coverage. Detox costs $600–$1,000/day. Learn CPT codes H0008–H0020, insurer denial tactics, and how to appeal using parity law.
Dental Insurance: Coverage, Limits & Hidden Gaps (2026)
Dental plans cap benefits at $1,500 yet a crown costs $2,000. Learn how waiting periods, downgrades, and frequency limits slash your real coverage.
Dental Discount Plan vs Insurance: Which Saves More?
Dental discount plans cost $100–$200/yr with no waiting periods or annual caps. See a real $3,000 crown cost comparison and learn when each option wins.
What Is a Health Insurance Deductible? (Plain-English Guide)
A deductible is the amount you pay before insurance kicks in. Learn how deductibles work, individual vs. family deductibles, HDHPs, and what counts toward yours.
HMO vs. PPO vs. EPO vs. HDHP: Which Plan Is Right for You?
HMO, PPO, EPO, HDHP — what's the difference? This plain-English guide compares all four plan types on cost, network flexibility, referrals, and who each is best for.
How to Read Your Explanation of Benefits (EOB) — Line by Line
An EOB is not a bill — it's a record of how your insurance processed a claim. Learn what every column means and how to spot billing errors before you pay.
What Is Coinsurance? How the 80/20 Split Actually Works
Coinsurance is the percentage you pay after your deductible is met. Learn how the 80/20 split works, how it differs from copays, and how to calculate your real exposure.
What Preventive Care Is Free Under Your Insurance in 2026?
The ACA requires most plans to cover USPSTF Grade A/B preventive services at $0. Here is the full list of free screenings, vaccines, and counseling — and how to fight a wrongful charge.
How to Apply for Medicaid in 2026 (Step-by-Step)
Apply for Medicaid in 15 minutes online. See income limits by state and family size, what documents you need, and how to get approved faster.
Medicare vs Medicaid: Key Differences Explained (2026)
Medicare is for 65+ and disabled. Medicaid is income-based. See the key differences in coverage, costs, eligibility, and what happens if you qualify for both.
How to Choose Health Insurance: A 2026 Guide
Choosing the wrong plan costs the average family $2,000+/year. Compare HMO vs PPO vs HDHP, estimate total costs, and pick the best plan for your situation.
How to Check If Your Doctor Is In-Network Before Your Visit
Don't get surprise out-of-network bills. Learn 5 ways to verify your doctor is in-network before your appointment and what to do if you're billed anyway.
What Is a Superbill? How to Get Out-of-Network Insurance
A superbill gets you reimbursed by insurance for out-of-network care. Learn what a superbill includes, how to request one, and how to submit it correctly.
Out-of-Network Medical Bills: Your Rights
Out-of-network bills can cost 2-5x more. Learn your No Surprises Act rights, how insurance calculates OON reimbursement, and 7 ways to reduce your bill.
Coordination of Benefits
Coordination of benefits errors cause thousands in surprise bills. Learn how primary vs secondary insurance works, common COB mistakes, and how to fix them.
Why Do I Still Owe Money After Insurance Paid? (2026)
You had insurance and they paid — so why is there still a balance? Learn the 7 reasons you owe after insurance, spot billing errors, and fight back.
ACA Subsidy Cliff 2026: What to Do If Your Premium Doubled
Enhanced ACA subsidies expired in 2026, raising premiums for 22 million Americans. Learn your coverage options, how to appeal bills, and financial help.
How to Appeal a Denied Insurance Claim (And Win) (2026)
Under 1% of denied claims are appealed, yet 44-80% of appeals succeed. Learn the step-by-step process to write a winning appeal letter.
Preventive Care Billing: What's Free Under Insurance
The ACA requires insurers to cover preventive care at no cost. Learn which services are free, when preventive turns diagnostic, and how to fight.
How Health Insurance Works: A Complete Guide to Premiums
Understand how health insurance actually works: premiums, deductibles, copays, coinsurance, out-of-pocket maximums, how claims flow, and network types.
How Medicare Billing Works: Part A, Part B, and What You Owe
Medicare covers 67 million Americans. Learn how Part A and Part B billing work, what you'll owe, and how to catch and fix errors.
How to Use Your HSA or FSA to Pay Medical Bills
HSA contribution limits hit $4,300 in 2026. Learn which medical expenses qualify, how to use HSA and FSA funds strategically, and why your HSA beats a.
COBRA Insurance: What It Costs and When to Use It
COBRA lets you keep employer coverage after job loss but premiums average $7,739/year. Learn when COBRA makes sense and how to avoid overpaying.
GLP-1 Drug Coverage: Why Insurance Denies Ozempic
BillKarma data shows 68% of Wegovy prior auth requests are denied initially. Learn why insurers cover Ozempic for diabetes but deny the same drug for obesity.
Copay vs. Coinsurance vs. Deductible
Copay, coinsurance, deductible — most Americans mix them up and overpay. Learn what each term means, how they interact, and how to spot billing errors.
How to Appeal a Health Insurance Claim Denial
Insurance denials get overturned 40-50% of the time on first appeal. Learn exactly how to appeal a denied claim with templates, timelines, and real examples.
Prior Authorization
Insurance plans improperly denied 13% of valid prior auth requests, yet 75% of appeals succeed. Learn what triggers PA requirements, why requests get denied.
Medicare Advantage Billing: What's Different
Learn how Medicare Advantage billing differs from Original Medicare, common billing traps, and how to appeal denials when claims are not paid correctly.
How to Read Your EOB: Explanation of Benefits Decoded (2026)
Confused by your Explanation of Benefits? Learn what every field means, how to spot errors, and what to do when your EOB doesn't match your bill.
Frequently Asked Questions
What is the difference between a deductible and an out-of-pocket maximum?
Your deductible is what you pay before insurance kicks in. Your out-of-pocket maximum is the most you'll pay in a year — after that, insurance covers 100%. Premiums don't count toward either.
What does coinsurance mean?
Coinsurance is your share of costs after you've met your deductible, expressed as a percentage. If your coinsurance is 20% and a procedure costs $1,000, you pay $200 and insurance pays $800.
Is an HMO or PPO better?
HMOs generally have lower premiums but require referrals and restrict you to a network. PPOs cost more but give flexibility to see any provider. If you have a preferred specialist or travel frequently, a PPO may be worth the higher premium.