Key Takeaways

• PSHB integrates with Medicare to offer eligible retirees coordinated CPAP therapy coverage, but supply limits and documentation requirements apply.
• Understanding OPM guidelines and annual supply rules helps you maximize your benefits and ensures compliance with 2026 regulations.

If you’re a postal retiree or approaching Medicare eligibility, you may have noticed important changes to your health benefit options since the Postal Service Health Benefits (PSHB) transition in 2025. This article helps you navigate how CPAP therapy coverage works with PSHB, how Medicare interacts, and what the Office of Personnel Management (OPM) requires so you can avoid common missteps and remain compliant this year.

What Is PSHB CPAP Coverage?

CPAP Therapy Overview

CPAP, or continuous positive airway pressure, therapy is a cornerstone treatment for obstructive sleep apnea, a condition affecting millions of Americans. A CPAP machine delivers a steady flow of air through a mask, keeping your airway open while you sleep. Effective therapy can reduce health risks like heart disease and daytime fatigue. Because of this, ensuring reliable coverage for CPAP equipment and supplies is critical for many federal retirees.

How PSHB Benefits Work

With the PSHB program now in place, retired postal workers receive their health benefits through plans that are distinct from the legacy FEHB options. CPAP therapy is commonly considered a durable medical equipment (DME) benefit. Under PSHB, your plan may cover CPAP machines, supplies such as masks and tubing, and potentially replacement parts, but usually with specific requirements for prescriptions, documentation, and ongoing clinical need. It’s important to check your plan materials for precise details, as coverage specifics can differ slightly between plans.

How Does Medicare Coordinate With PSHB?

Medicare Eligibility Basics

If you are age 65 or older, or disabled, you may qualify for Medicare. Many postal retirees will have Medicare Part A (hospital insurance) and, often, Part B (medical insurance). Medicare Part B usually covers medically necessary durable medical equipment, which includes qualifying CPAP devices and certain supplies—provided you meet clinical guidelines and usage requirements. Keep in mind that Medicare coverage is subject to medical necessity determination and provider enrollment.

Medicare and PSHB Enrollment Process

After the 2025 transition, enrollment in both PSHB and Medicare is typically required for eligible postal retirees. When you have both, PSHB generally coordinates with Medicare. For CPAP therapy, this means that Medicare usually pays first (primary), and your PSHB plan acts as secondary. This dual coverage reduces your out-of-pocket costs, but you’ll need to follow approval and documentation steps for both. Coordinating these benefits can maximize your access, but failing to enroll on time or missing documentation can delay or complicate your coverage, so proactive planning is advised.

What Are OPM Rules for Coverage?

OPM’s Role in PSHB Administration

The Office of Personnel Management (OPM) oversees the administration of the PSHB program. OPM is responsible for setting policy, ensuring plan compliance, adjudicating eligibility, and communicating critical deadlines or process changes to members. With the 2025 transition complete, OPM also provides ongoing guidance to postal retirees and their families to help them understand their health benefits, particularly as they interact with Medicare.

Key Eligibility Guidelines

Eligibility for PSHB CPAP coverage depends on several factors:

• You must be a qualified postal retiree or family member enrolled in a PSHB plan.
• If you are Medicare-eligible, enrollment in both Medicare Parts A and B is usually required for optimal coordination and coverage under PSHB for your CPAP needs.
• Medical necessity must be established—often through a physician’s diagnosis, sleep study results, and proof that CPAP therapy is appropriate.
• You must use in-network, Medicare-enrolled suppliers for your equipment and supplies.

Always verify eligibility details in your plan documents or through an OPM resource.

Changes Since 2025 PSHB Transition

Since January 1, 2025, all eligible postal retirees must be enrolled in PSHB, and the legacy FEHB program no longer provides their benefits. This transition introduced some new requirements, including:

• Mandatory Medicare Part B enrollment (for most) when reaching eligibility, except for limited exceptions allowed by OPM.
• Updated processes for authorizing, renewing, or replacing durable medical equipment such as CPAP machines and related supplies.
• Enhanced documentation and recertification requirements to support ongoing medical necessity of CPAP therapy.

It’s key to review annual updates from OPM and your plan administrator to remain compliant and keep your coverage uninterrupted.

Pros of PSHB and Medicare Coverage

Broad Access to CPAP Therapy

With PSHB and Medicare working together, most eligible retirees benefit from broad access to CPAP therapy and supplies when prescribed. When both payers coordinate, you typically see reduced costs for both initial equipment and ongoing replacement supplies. The network of authorized suppliers under both PSHB and Medicare ensures you can access equipment in most areas, as long as you follow the correct approval pathway.

Seamless Coordination With Medicare

One of the biggest advantages is the seamless payment structure: Medicare usually processes claims first, then PSHB picks up eligible residual costs. This coordination often simplifies your billing and reduces paperwork. You also gain the peace of mind that comes from having two strong insurance backstops—especially important in retirement when health risks can rise.

What Are the Cons or Limitations?

Authorization Requirements

To access CPAP coverage, you’ll almost always need prior authorization, updated prescriptions, and proof of diagnosis. This can mean extra appointments, paperwork, and follow-up to keep your therapy fully covered each year. If your medical need changes or you lapse in documentation, coverage interruptions are possible.

Coverage Differences to Know

Not all supplies or accessories are covered equally across plans or between PSHB and Medicare. Replacement frequency for parts (like masks, tubing, and filters) is often regulated. Some plans or Medicare may set quantity and timing restrictions, so out-of-pocket costs could arise if your needs exceed these limits. Additionally, some accessories considered “comfort” items rather than medical necessities may not be covered at all.

Do CPAP Supplies Have Unique Rules?

Annual Supply Limits

Both PSHB and Medicare set specific annual or periodic supply limits for CPAP-related equipment. For instance, Medicare typically allows a new mask every three months and tubing every three months, subject to ongoing usage and documentation. PSHB plans may follow these or set their own supply schedules, so review your plan and Medicare guidelines closely to avoid surprise expenses.

Documentation and Medical Necessity

Documenting your continued need for CPAP therapy is essential. Most plans, in accordance with OPM and Medicare guidelines, will require:

• Ongoing proof of medical necessity from your healthcare provider.
• Sleep study or compliance reports demonstrating usage (for both starters and renewals).
• Timely renewal of prescriptions. Missing any of these can result in denied claims or delayed coverage for replacement supplies.

Always keep your documentation up to date and respond promptly to requests from your plan or supplier.