2023 Open Enrollment

April 17-28, 2023

Why Open Enrollment Matters

  • It’s an opportunity to review what benefits you have and verify you and the right family members are covered.
  • It’s also a reminder to update personal information: name, address, phone number, dependents, beneficiaries, etc.
  • Outside of open enrollment you can ONLY make changes if you have a qualifying event (such as marriage, divorce, birth or adoption of a child, or loss of other coverage).
  • Any coverage cancelled at this year’s open enrollment cannot be added back until next year’s open enrollment

Onsite Face-to-Face Enrollment

April 27 & 28, 2023

During this time, Benefits Representatives from Mark III will be scheduled for appointments at each location to meet with you to review your benefits and assist you with any changes you need to make.

Call Center Enrollment

You may call the Mark III Call Center line at:

(833) 864-8492

(Monday-Friday 8am-5pm)

and a licensed benefits counselor will be able to assist with elections or changes to your benefits.

Self-Service Online Enrollment

You can enroll online at:


User ID: SSN

PIN: Last 4 of SSN + Last 2 of Birth Year

Changes made during this enrollment period will take effect July 1.

REMEMBER: The Annual Enrollment Period is the only time you are able to make changes to your benefits. Changes outside of this timeframe are only permitted if you experience a Qualified Event outlined by the IRS. If you should experience a Qualified Event, you have 30 days from the Event Date to make a change to your benefits.