Key Takeaways

• PSHB plans in 2026 include prescription drug coverage, often reducing the need for stand-alone Medicare Part D for most retirees.
• Carefully review provider networks and enrollment deadlines to ensure seamless health and prescription coverage through the PSHB transition.

As the PSHB program takes full effect in 2026, many federal and USPS retirees wonder about the changes to their health and prescription drug coverage. The transition from FEHB to PSHB introduces important choices, especially regarding Medicare Parts A, B, and D. Here’s what you need to know to make informed decisions about your coverage.

What Is PSHB and How Does It Work?

Transition from FEHB to PSHB

PSHB, short for Postal Service Health Benefits, is the new health coverage program for USPS employees, retirees, and eligible family members. It fully replaced FEHB (Federal Employees Health Benefits Program) for this group starting January 1, 2025. If you are a former USPS employee or eligible family member, your health benefits are now managed through PSHB. The transition was automatic for most, but it’s important to review your specific situation.

Key differences between FEHB and PSHB

While FEHB and PSHB share similarities—such as federal oversight and broad plan types—the two differ in several ways. PSHB plans are designed specifically for the USPS community, with certain Medicare coordination requirements that did not apply under FEHB. For example, PSHB retirees who are Medicare-eligible may be required to enroll in Medicare Part B, and the plans are generally structured to work more closely with Medicare coverage. Additionally, PSHB plans tend to offer integrated prescription drug benefits modeled after Medicare Part D.

Who Is Eligible for PSHB in 2026?

Eligibility criteria for federal retirees

PSHB is for USPS retirees and their family members, not all federal retirees. If you retired from USPS or are a survivor annuitant with USPS, you’re included. You must meet standard retirement and health benefit eligibility rules, such as having been enrolled in FEHB or PSHB for the required period before retirement. If you did not work for USPS, you will remain in FEHB and are not part of PSHB.

USPS retirees and their unique rules

A major difference for USPS retirees is the new Medicare integration requirement. If you are age 64 or older as of January 1, 2025, and are eligible for Medicare Part A at no premium, you’ll generally need to enroll in Medicare Part B to maintain full PSHB coverage as of 2025. There are some limited exceptions. Your family members and survivors may also be subject to these requirements if they meet the criteria for PSHB participation.

How Does PSHB Interact With Medicare?

Medicare Parts A, B, and PSHB coordination

PSHB plans are built to work seamlessly with Medicare. If you have Medicare Part A (hospital insurance) and Part B (medical insurance), PSHB acts as your secondary coverage. This coordination can help reduce out-of-pocket costs for many covered services. Having both can be valuable, as Medicare pays first and PSHB covers what Medicare doesn’t, subject to plan rules.

Changes to Medicare requirements for PSHB participants

Beginning with the PSHB program launch, most eligible USPS retirees must enroll in Medicare Part B to retain full PSHB plan benefits. This is a change from FEHB, which did not require Part B. However, there is no similar requirement for Medicare Part D because PSHB plans automatically include prescription coverage considered at least as good as Medicare Part D (known as “creditable coverage”).

Do I Need Medicare Part D With PSHB?

Prescription drug coverage in PSHB plans

All PSHB plans for retirees come with integrated prescription drug coverage. This coverage is designed to match, and often exceed, the standard offered by standalone Medicare Part D plans. In many cases, your PSHB plan’s prescription benefits will meet all your needs without a separate Medicare drug plan.

Scenarios when Medicare Part D may be considered

Most retirees covered under PSHB won’t need to buy an individual Medicare Part D plan. However, there may be rare situations, such as if you spend time outside your PSHB plan’s pharmacy network or require a medication not on your plan’s formulary, where a separate Part D plan could be considered. For the vast majority, maintaining your PSHB prescription coverage is sufficient and avoids duplicate premiums.

What Are Common Questions During Enrollment?

Deadlines for enrolling in PSHB and Medicare

Enrollment windows are key. The initial PSHB open season occurred in 2024, but you have opportunities to make changes each year, usually in the fall during Open Season. For Medicare, initial enrollment is around your 65th birthday, but there are also Special Enrollment Periods, especially if you lose employer coverage.

Actions federal retirees may need to take

You may need to actively elect your PSHB plan each Open Season, even if you want to keep the same coverage. Review plan details and confirm your Medicare enrollment (especially Part B). If you’re switching PSHB plans or considering supplemental options, gather all documents and check deadlines to avoid any gap in your health or prescription benefits.

Can I Keep My Doctor With PSHB?

Network considerations under PSHB plans

Each PSHB plan has its provider network, and Medicare coordination expands your access. If your doctor accepted FEHB or Medicare before, they may accept your new PSHB plan. Still, network rules and billing processes might differ, so check with your provider’s office.

Verifying your providers during the transition

Contact your provider and confirm whether they are in-network for your chosen PSHB plan and will work with Medicare. Most carriers update their directories before Open Season, but confirmation calls or emails offer peace of mind before switching.

What Should I Double-Check Before Switching?

Checklist for a smooth transition

• Review your plan’s provider and pharmacy networks
• Verify your medications are on the PSHB plan’s drug list (formulary)
• Confirm your Medicare Parts A and B enrollment status
• Track enrollment deadlines for both PSHB and Medicare

Avoiding common mistakes

Two frequent pitfalls are missing an enrollment deadline and assuming all providers will automatically stay in-network. Take time to compare plans, check coverage details, and keep documentation of every enrollment decision to safeguard your coverage.

Is Separate Medicare Enrollment Still Needed?

How to handle Medicare during PSHB open season

PSHB enrollment does not automatically enroll you in Medicare. If you’re turning 65, or newly eligible, apply for Medicare via Social Security as soon as possible to avoid penalties and ensure coverage lines up with your PSHB plan.

Who must enroll and by when?

Most USPS retirees ages 64 and up (as of Jan. 1, 2025) must enroll in Medicare Part B. Check for notices from OPM and Social Security, as well as PSHB plan documents. Family members with PSHB coverage should also verify if they need to enroll in Part B to avoid disruptions.