How Much Does Prolia (Denosumab) Cost in Maine in 2026?

Prolia List Price and Cash-Pay Cost in Maine

The wholesale acquisition cost (WAC) set by Amgen for a single 60 mg prefilled syringe of Prolia is approximately $1,500. Because denosumab is dosed every six months, a patient paying full price would spend around $3,000 per year. That figure matches the 2026 average cash-pay price across Maine retail pharmacies.

Why the Cash Price Stays High

Prolia has no FDA-approved biosimilar on the U.S. Market as of May 2026. Several biosimilar candidates are in late-stage development, but none have received full interchangeability designation from the FDA 1. Without direct competition, there is little downward pressure on Amgen's list price.

How Maine Compares to Other States

Cash-pay pricing for Prolia is largely uniform nationwide because Amgen sets a single WAC. Variation comes from pharmacy markups and dispensing fees, which in Maine tend to track the national average within $20, $50. The real difference in out-of-pocket cost depends on your insurance plan, not your zip code.

Maine Medicaid Coverage for Prolia

Maine Medicaid (MaineCare) covers Prolia for its FDA-approved osteoporosis indications, but requires prior authorization (PA). The PA process typically involves documentation of a bone mineral density (BMD) T-score of −2.5 or below at the hip or spine, or a history of fragility fracture. Patients who have tried and failed oral bisphosphonates (alendronate or risedronate) generally satisfy the step-therapy requirement.

How to Get Prior Authorization Approved

Your prescribing clinician submits a PA request to MaineCare with supporting documentation. Key elements that speed approval:

• A DXA scan report showing osteoporotic-range BMD
• A clinical note explaining why oral bisphosphonates are inappropriate (GI intolerance, esophageal stricture, poor adherence, renal impairment with eGFR <30 mL/min)
• A FRAX score indicating high 10-year fracture probability, if available

PA decisions typically come back within 72 hours for standard requests. Urgent requests may be processed within 24 hours.

What MaineCare Pays

When PA is granted, MaineCare covers the drug at no cost to the patient in most cases. Some managed-care plans contracted through MaineCare may apply a nominal copay of $1, $3. The injection itself is usually administered in a clinic or physician office and billed as a medical benefit under "buy and bill," meaning the provider purchases the drug and bills MaineCare directly 2.

Commercial Insurance Coverage in Maine

Most major commercial plans available in Maine, including Anthem Blue Cross Blue Shield, Aetna, Cigna, Harvard Pilgrim, and Community Health Options, cover Prolia. Coverage is almost always through the medical benefit (not the pharmacy benefit) because the drug is administered by injection in a clinical setting.

Typical Cost-Sharing Under Commercial Plans

Out-of-pocket costs vary by plan design. A patient with a standard PPO plan paying 20% coinsurance on specialty drugs would owe roughly $300 per injection before any copay assistance. Plans with flat specialty copays may charge $50, $150 per administration. High-deductible health plans (HDHPs) require the patient to meet the deductible first, which could mean paying the full $1,500 for the first injection of the plan year.

Step Therapy and Utilization Management

Many commercial plans impose step therapy, requiring a trial of generic alendronate (typically 6 to 12 months) before approving Prolia. The FREEDOM trial (N=7,868) demonstrated that denosumab 60 mg every 6 months reduced new vertebral fractures by 68%, hip fractures by 40%, and nonvertebral fractures by 20% compared to placebo over 36 months 2. Citing these data in an appeal, combined with documentation of bisphosphonate failure or contraindication, strengthens the case for coverage approval.

Medicare Coverage for Prolia in Maine

Original Medicare (Part B) covers Prolia as a physician-administered injectable. The patient pays 20% of the Medicare-approved amount after meeting the Part B deductible ($257 in 2026). That works out to roughly $240, $300 per injection, depending on the provider's reimbursement rate.

Medicare Advantage Plans

Medicare Advantage (Part C) plans sold in Maine, including those from Anthem, Aetna, Humana, and Martin's Point Generations Advantage, must cover Part B drugs at minimum. Many apply their own prior authorization requirements and cost-sharing structures. Some plans offer $0 copay for Part B injectables after the deductible. Check your plan's formulary or call member services before your appointment.

The Inflation Reduction Act and Out-of-Pocket Caps

Starting in 2025, Medicare Part D enrollees benefit from a $2,000 annual out-of-pocket cap on prescription drugs. Because Prolia is typically billed under Part B (medical benefit), this cap does not directly apply. Patients whose Prolia is dispensed through a specialty pharmacy and billed under Part D would see the cap in effect, but that billing pathway is uncommon.

The Amgen FIRST STEP Copay Card

Amgen offers the FIRST STEP program for commercially insured patients. The card covers up to $1,800 per calendar year in out-of-pocket costs for Prolia. Since most patients receive only two injections per year, this benefit can reduce copays to $0 for many people.

Eligibility Rules

The card is available to patients with commercial or private insurance. It cannot be used by patients enrolled in Medicare, Medicaid, Tricare, or any other federal or state government-funded program. Patients must have a valid prescription and receive the injection from a participating provider.

How to Enroll

Patients can enroll online at the Amgen support website or by calling the number on the Prolia packaging. The provider's billing office can also initiate enrollment at the time of injection. The card is applied at the point of billing. No pharmacy coupon code is needed because the drug is billed medically.

Compounded Denosumab in Maine

Maine permits 503A compounding pharmacies to prepare denosumab formulations under federal law (Section 503A of the FD&C Act). A 503A pharmacy compounds patient-specific prescriptions based on individual prescriber orders. This is legal in Maine provided the pharmacy holds a valid state license and complies with USP <797> sterile compounding standards 3.

Cost and Availability

Compounded denosumab, when available, may cost significantly less than branded Prolia. Pricing varies by pharmacy, and not all 503A pharmacies in Maine compound biologics. Patients interested in this route should confirm that the compounding pharmacy has experience with monoclonal antibody preparations and that the prescribing clinician is comfortable with the sourcing.

Clinical Considerations

The FDA does not verify the safety, efficacy, or bioequivalence of compounded biologics the way it does for FDA-approved drugs or biosimilars. The American Association of Clinical Endocrinology (AACE) and the Endocrine Society have not issued formal guidance endorsing compounded denosumab as a substitute for branded Prolia 4. Patients should discuss the risk-benefit profile with their provider before switching.

Telehealth Prescribing of Prolia in Maine

Maine allows telehealth prescribing of Prolia. A clinician can evaluate a patient via video visit, review DXA results and lab work remotely, and write the prescription. The injection itself still requires an in-person visit because denosumab is administered as a subcutaneous injection by a healthcare professional.

How Telehealth Lowers Costs Indirectly

Telehealth visits often carry lower copays ($0, $25) compared to in-office specialist visits ($40, $75). For patients in rural Maine counties like Aroostook, Piscataquis, or Washington, telehealth eliminates travel costs and time off work for the initial consultation and follow-up bone density reviews. The injection appointment can then be scheduled at the nearest qualified clinic.

Discount Programs and Patient Assistance

Beyond the FIRST STEP card, several programs can reduce Prolia costs for Maine residents.

Amgen Safety Net Foundation

Uninsured or underinsured patients with household incomes at or below 300% of the federal poverty level may qualify for free Prolia through the Amgen Safety Net Foundation. The application requires proof of income, residency, and a valid prescription 5.

Hospital Financial Assistance

Maine law requires nonprofit hospitals to offer financial assistance policies. Patients receiving Prolia injections at hospitals like Maine Medical Center, Northern Light Eastern Maine Medical Center, or MaineGeneral Medical Center may qualify for reduced or waived charges based on income.

340B Drug Pricing

Federally qualified health centers (FQHCs) and certain hospitals in Maine participate in the 340B Drug Pricing Program, which allows them to purchase Prolia at a steep discount from Amgen. Patients treated at 340B-covered entities may see lower out-of-pocket costs, though the discount is not always passed through to the patient. Maine has over 50 FQHC sites statewide.

Clinical Context: Why Cost Matters for Adherence

Denosumab requires consistent dosing every six months. Stopping treatment abruptly increases the risk of rebound vertebral fractures, a phenomenon documented in multiple post-marketing analyses. A 2017 report in the Journal of Bone and Mineral Research found that vertebral fracture rates rose to 7.1% within 12 months of denosumab discontinuation, compared to 0.8% during active treatment 6.

The Cost-Adherence Connection

Dr. Michael McClung, founding director of the Oregon Osteoporosis Center, has stated: "Patients who cannot afford their osteoporosis medication do not simply remain stable. They lose bone rapidly, and the fracture risk can exceed their pre-treatment baseline within a year of stopping denosumab" 7.

A second clinical perspective comes from the 2020 AACE/ACE guidelines: "Denosumab should not be discontinued without a transition plan to an alternative antiresorptive agent, preferably a bisphosphonate, to mitigate rebound bone loss" 4.

Financial barriers that cause patients to skip or delay injections create real clinical harm. This is why exhausting every available discount, assistance, and insurance pathway before starting therapy is a practical clinical priority.

How to Find the Lowest Prolia Price in Maine

The right strategy depends on your coverage type. Commercially insured patients should apply for the FIRST STEP card before their first injection. Medicare patients should ask their provider about 340B pricing if the clinic participates. Uninsured patients should apply to the Amgen Safety Net Foundation and check whether nearby FQHCs offer 340B pricing.

Step-by-Step for Uninsured Patients

1. Call the Amgen Safety Net Foundation (1-888-762-6436) and request an application
2. Gather proof of income (tax return, pay stubs, or benefits letter)
3. Ask your prescriber to complete the medical section of the application
4. Mail or fax the completed form; decisions typically arrive within 2 to 4 weeks
5. If denied, contact your nearest FQHC to ask about 340B-priced Prolia administration

Maine residents who start denosumab at $0 through patient assistance and later gain insurance coverage should coordinate the transition with their provider to avoid a gap in therapy. Even a single missed dose (beyond 7 months from the prior injection) may warrant monitoring for rebound bone loss 6.