Is Medicare Part D better for postal a retiree than PSHB Part D Employer Group Waiver Plan (EGWP)?

  Is Medicare Part D better for postal a retiree than PSHB Part D Employer Group Waiver Plan (EGWP)?

"...For many retirees, Medicare Part D can be considered better than a PSHB Part D EGWP because it..."

Reference: federalretirementnews.blogspot.com