While a K-1 for a partnership would have an entry for health insurance, S-Corp K-1s do not. The insurance amount is shown on the shareholder's W-2 (as yours has).
According to the IRS Instructions for Form 1120S (p. 16):
Report amounts paid for health insurance coverage for a more-than-2% shareholder (including that shareholder's spouse, dependents, and any children under age 27 who aren't dependents) as an information item in box 14 of that shareholder's Form W-2. A more-than-2% shareholder may be allowed to deduct such amounts on Schedule 1 (Form 1040), line 16. To find out if the shareholder can claim this deduction, see Self-Employed Health Insurance Deduction in chapter 6 of Pub. 535, Business Expenses.
