Frequently Asked Questions – General

How do I setup automatic premium reimbursement for my Medicare Part B premiums and Part D premiums, if applicable, that are deducted from my Social Security payments?

You can setup automatic premium reimbursement by completing the WEX Automatic Premium Reimbursement Request Form. Please complete and return the form to WEX as follows:

Mail:  PO Box 2926 ∙ Fargo, ND 58108-2926, or
Email: customerservice@wexhealth.com, or
Fax: 866-451-3245.

Can I use my Defined Dollar Credit to pay for premiums from another employers plan?

Yes, however any premiums deducted from your paycheck must be paid for on an after-tax basis to be eligible for reimbursement from the HRA.

Will my spouse/surviving spouse be eligible for coverage and/or a Defined Dollar Credit?
Yes, the spouse/partner you have when you retire will be eligible for coverage and the Caltech Defined Dollar Credit. If a retiree re-marries after 2015 (January 1, 2015) the new spouse can join the plan, but Caltech will not provide a Defined Dollar Credit toward the new spouse’s coverage.
How do I make monthly premium payments?
If you select a plan that costs more than your Defined Dollar Credit, you will be invoiced each month for the difference. The invoice will come from Mercer, Caltech’s benefits billing administrator.

  • Payments are due the first of each month. Generally, invoices will be mailed around the 5th of the month. However, the invoice for January will be mailed at a later date in order to allow time for processing of the new plan year enrollment files.

You can make payments with a check, setting up EFT (Electronic Funds Transfer) through Mercer My Account or by setting up a recurring payment through your bank.

What happens if I don't pay my bill?
Your coverage will be terminated if you fail to make timely payments and coverage will not be reinstated until past due premiums are paid in full.
Is my dependent child eligible for coverage?
Yes, children who are under age 26 or disabled can be on the plan. However, Caltech will not provide a Defined Dollar Credit for dependent children.
Do I have to join the Caltech retiree medical program?

You don’t have to join the Caltech retiree medical program. However, if you are a non-grandfathered retiree or spouse, there are rules about when you can join.

  • If you have other medical coverage (other than Medicare), you will be able to join the Caltech retiree medical program if that other coverage ends. However, to join the Caltech retiree medical program, you must notify the Caltech Retiree Service Center within 90 days of the date the other coverage ends, and you must provide proof that you have maintained continuous medical coverage (other than Medicare) since January 1, 2015. (Be sure to retain records that prove you have continuous medical coverage, such as annual confirmation statements or premium receipts.)
  • If you don’t have other medical coverage and are not in the Caltech retiree medical plan already, you can join the Caltech medical plan during Open Enrollment in 2019. If you retired prior to 1/1/15 and you do not enroll in the Caltech retiree medical program during the 2019 open enrollment period, and you do not have other continuous medical coverage (other than Medicare), you will waive your right to join the Caltech retiree medical program, including an HRA.
What are the grandfathering rules?

If you retired with Caltech medical coverage before January 1, 1991, you are considered a grandfathered retiree.

If you were actively at work on April 1, 1991, and you had at least 10 years of continuous Caltech service, and you met at least one of the following criteria as of April 1, 1991, you may be considered a grandfathered retiree:

  1. You were age 55.
  2. Your age plus years of service was greater than 72.
  3. Your years of service plus three times your age was greater than or equal to 175.
How is the program different for Medicare-eligible grandfathered retirees?

If you are a Medicare-eligible grandfathered retiree age 65 or older, you and your Medicare-eligible spouse will continue to be eligible for a free medical plan.

I am a Grandfathered retiree, what plans can I choose?
You can choose one of the following plans:

  • The Kaiser HMO Medicare Advantage plan is free.
  • Opt out of the free plan option and use your Defined Dollar Credit to choose an Aetna plan.
  • Collect your Defined Dollar Credit in an HRA plan. Caltech will use the maximum service credit of 25+ years to calculate your Defined Dollar Credit.
I am a Grandfathered retiree, can I have my left over Defined Dollar Credit in an HRA if I am on the free Kaiser plan?
No, if you choose the free plan, you are not entitled a Defined Dollar Credit amount.
I am a Grandfathered retiree, but my spouse is not Medicare eligible yet, can my spouse have the free Kaiser plan?
No, if your spouse is not Medicare eligible, they will receive a Defined Dollar Credit to purchase an Aetna or Kaiser plan. Caltech will use the maximum service credit of 25+ years to calculate their Defined Dollar Credit.
I am a Non-Grandfathered retiree (or spouse), can I enroll in the free Kaiser plan?
No, Caltech provides you and your eligible spouse with a Defined Dollar Credit to help pay for your health care. The amount of your credit is based on your years of service up to a maximum of 25+ years.
I am a Non-Medicare eligible Grandfathered retiree (or Non-Medicare eligible spouse), can I enroll in the free Kaiser plan?
No, Caltech provides you and your eligible spouse with a Defined Dollar Credit to help pay for your health care. The amount of your credit is based on your years of service up to a maximum of 25+ years.
Caltech Retiree Service Center
1-855-251-0910

2025 Caltech Future Retiree Guide