Anthem Insurance is one of the largest health insurers in the United States, covering roughly 47 million people through individual, employer-sponsored, Medicare Advantage, and Medicaid-managed care plans. It operates as a subsidiary of Elevance Health, Inc., which rebranded its parent company from Anthem, Inc. in 2022 while keeping the Anthem Blue Cross and Blue Shield name on most health plan products. What any given plan covers depends on the product you buy, but every plan sold on the Affordable Care Act marketplace includes the same federally mandated set of benefits, and most other Anthem plans follow that framework.
Who Owns and Regulates Anthem
Anthem is a for-profit, licensed health insurer under Elevance Health, which serves about 118 million people across its family of brands. Alongside Anthem, Elevance runs a separate health plan brand called Wellpoint and a healthcare services brand called Carelon.
As a licensed insurer, Anthem answers to state insurance departments (which enforce solvency rules, review premium filings, and handle consumer complaints) and to federal law. Federal obligations include the ACA’s coverage mandates, HIPAA’s privacy and portability protections, and the No Surprises Act’s billing rules. Plans sold on the ACA marketplace also have to meet specific standards for benefits, cost-sharing limits, and pricing transparency.
What Anthem Plans Cover
Every Anthem plan sold on the ACA marketplace covers ten categories of essential health benefits. These apply to individual and small-group plans whether you buy through an employer or on your own:
- Outpatient care, including doctor visits and same-day surgery
- Emergency services
- Hospitalization, including inpatient surgery and overnight stays
- Maternity and newborn care
- Mental health and substance use treatment
- Prescription drugs on the plan’s formulary
- Rehabilitative services and devices, such as physical therapy and durable medical equipment
- Lab services, including blood work and imaging
- Preventive and wellness care at no out-of-pocket cost
- Pediatric services, including dental and vision for children
Many Anthem plans layer on extras: adult dental and vision, telehealth visits, wellness programs, gym discounts, and smoking cessation support. Prescription coverage runs through a tiered formulary, so a generic drug costs far less than a brand-name specialty medication.
No plan covers everything. Anthem generally excludes experimental treatments, elective cosmetic surgery, and services it considers not medically necessary. Certain procedures require prior authorization, meaning Anthem must approve the treatment before you receive it. Skipping that step can lead to a denied claim even when the underlying service would normally be covered. The specifics vary by plan, so reading your policy documents before scheduling non-routine care is worth the time.
How Anthem Plans Are Priced
ACA marketplace plans use a metal tier system that reflects how you and the insurer split costs. The tiers don’t measure quality of care; they measure the share of average costs the plan expects to cover.
- Bronze plans cover about 60% of costs. Premiums are lower, deductibles and copays higher.
- Silver plans run about a 70/30 split and qualify for extra cost-sharing reductions if your income is below certain thresholds.
- Gold plans cover about 80%, with higher premiums but lower costs at the point of care.
- Platinum plans cover about 90%, with the highest premiums and lowest out-of-pocket costs.
For 2026, ACA-compliant plans cap annual out-of-pocket spending at $10,600 for individual coverage and $21,200 for family coverage. Once you hit that ceiling, the plan covers 100% of in-network costs for the rest of the year.
Anthem also offers high-deductible health plans that pair with a health savings account, letting you set aside pre-tax dollars for medical expenses. For 2026, the IRS caps HSA contributions at $4,400 for individual coverage and $8,750 for family coverage. Some employer-sponsored Anthem plans instead offer flexible spending accounts, which have similar tax advantages but different rollover rules.
Network Types and What They Mean for Your Costs
How much you actually pay depends heavily on which network structure your Anthem plan uses. The four main types work differently:
- HMO plans require you to pick a primary care doctor who coordinates your care and refers you to in-network specialists. Out-of-network care usually isn’t covered.
- PPO plans let you see any provider without a referral, though in-network care costs significantly less. Out-of-network care is partially covered at higher cost-sharing.
- EPO plans work like HMOs for out-of-network care (generally not covered) but don’t require referrals for specialists.
- POS plans are a hybrid: your primary care doctor refers you to specialists, but you have some out-of-network coverage if you’re willing to pay more.
Anthem negotiates reimbursement rates with the providers in its networks, and those networks shift periodically based on provider performance and cost. Some Anthem plans use narrow networks with fewer providers but lower premiums; broader networks cost more and offer wider choices. Confirming your doctor is still in-network before the plan year starts is worth a two-minute phone call.
When You Can Enroll
Enrollment windows depend on how you’re buying the plan.
ACA Marketplace
Open Enrollment for individual and family plans runs from November 1 through January 15. Selecting a plan by December 15 gives you coverage starting January 1; enrolling between December 16 and January 15 pushes your start date to February 1.
Outside open enrollment, you can only sign up or switch during a Special Enrollment Period triggered by a qualifying life event: losing other coverage, getting married or divorced, having or adopting a child, moving to a new ZIP code, or income changes that affect your subsidy eligibility. You generally have 60 days from the event to enroll.
Employer Plans
Employer-sponsored Anthem plans follow the employer’s own calendar, which typically opens once a year for a few weeks. Federal law requires employers to allow at least a 30-day special enrollment window when employees experience qualifying life events like marriage, birth of a child, or loss of other coverage. There is no federal minimum length for the annual open enrollment window itself. Miss your employer’s window without a qualifying event, and you’re generally locked out until the next year.
COBRA
If you lose employer-sponsored Anthem coverage due to job loss, reduced hours, or certain other qualifying events, federal COBRA rules give you at least 60 days to elect continuation coverage and 45 days after that to make your first premium payment. COBRA lets you keep the same plan, but you pay the full premium (your share plus what your employer was contributing), often plus a 2% administrative fee.
Medicare Plans Through Anthem
Anthem sells Medicare Advantage plans, which bundle hospital, medical, and often drug coverage into a single plan, and Medicare Supplement plans, which help cover the out-of-pocket costs original Medicare leaves behind.
Your Initial Enrollment Period for Medicare is a seven-month window that starts three months before the month you turn 65 and ends three months after it. The Medicare Advantage Annual Election Period, when you can switch between Medicare Advantage plans or return to original Medicare, runs from October 15 through December 7 each year.
Delaying Part B enrollment when you’re first eligible triggers a penalty of 10% added to your monthly premium for every full year you could have signed up but didn’t. With the standard 2026 Part B premium at $202.90 per month, waiting two years would add roughly $40.58 per month, and that surcharge lasts as long as you have Part B. Part D drug coverage carries a similar penalty if you go 63 days or more without creditable drug coverage after your initial enrollment period. Anthem and other Part D insurers must notify Medicare-eligible members each year, before October 15, whether their current drug coverage counts as creditable.
Protections Against Surprise Bills
Since 2022, the federal No Surprises Act has protected Anthem members from unexpected out-of-network charges in several common situations. If you get emergency care from an out-of-network provider, they can’t bill you more than your plan’s in-network cost-sharing amount. The same protection covers out-of-network providers who treat you at an in-network hospital or surgical center, such as anesthesiologists, radiologists, or pathologists you didn’t choose.
Air ambulance services also fall under these protections. If an out-of-network air ambulance transports you, your costs are limited to what you’d pay in-network, and those costs count toward your in-network deductible and out-of-pocket maximum. Any billing dispute between the provider and Anthem goes through a federal independent dispute resolution process that you’re not part of.
For non-emergency care at an in-network facility, an out-of-network provider can only charge you above in-network rates if they give you written notice at least 72 hours before the appointment (or 3 hours before in same-day situations) and you sign a consent form. You can revoke that consent in writing any time before services begin. If you’re uninsured or paying out of pocket, providers must give you a good faith cost estimate when you schedule care or ask about pricing.
Claims, Prior Authorization, and Appeals
Most in-network providers bill Anthem directly, so you never touch a claim form. Out-of-network care may require you to submit the claim yourself through Anthem’s portal, mobile app, or by mail, with an itemized bill and procedure codes attached. After a claim processes, you receive an Explanation of Benefits showing what was billed, what Anthem approved, and what you owe. The EOB is not a bill; the actual bill comes from the provider.
Certain procedures, imaging studies, and specialty drugs require prior authorization before Anthem will agree to cover them. Under the CMS Interoperability and Prior Authorization rule, Anthem must respond to urgent requests within 72 hours and standard requests within seven calendar days. Getting prior authorization in writing before a procedure is one of the most reliable ways to avoid a denied claim.
If Anthem denies a claim or prior authorization request, you have appeal rights. An internal appeal goes back to Anthem with supporting documentation, and the insurer must complete that review within 30 days for care you haven’t received yet or 60 days for services already provided. If the internal appeal fails, you can request an independent external review, whose decision is binding on Anthem. Filing fees for external review are minimal, typically $25 or less, and some states charge nothing. Your state’s insurance department can also help if you hit procedural roadblocks along the way.