Caregiver uses Grok to compare next year's Medicare drug plans for a mother-in-law and finds a far cheaper one

What they did

With Grok's help, they compared 2027 Medicare Part D drug plans for their mother-in-law. Instead of looking only at the monthly premium, they used the Medicare.gov Plan Finder, entered her real prescriptions, picked her usual pharmacy and sorted by lowest estimated drug plus premium cost. They also checked nearby preferred pharmacies and mail order, which changed the totals a lot, and counted the cost of vitamins and a B12 shot the cheaper plan does not cover. Only the drug plan changed; her other Medicare coverage and supplement stayed the same.

How it went

They found a low-premium plan that came out far cheaper for the year, even after paying separately for the items it does not cover, and note that people can still switch through December 7.

"Grok helped me compare 2027 Medicare Part D plans, and it saved about $2,700 to $2,850 a year for my mother in law."

— Tada (@Tada__X_)

Worth knowing

• The numbers come from the official Plan Finder, not from Grok, so run your own prescriptions there and confirm the pharmacy network before you switch. Plan rules and enrollment dates change each year.
• Price check: Grok: free plan; Plus (The X Subscription): US$8/month, or US$6.67/month on a yearly plan (US$80/year) (checked Nov 2, 2026).

Try it yourself

Paste this into a chatbot, then add your own details underneath.

Help me compare next year's Medicare drug plans for my relative. Walk me through using the official Medicare Plan Finder with these prescriptions: [list with doses]. Usual pharmacy: [name]. Explain which costs to compare besides the premium, how preferred pharmacies and mail order change the total, and what to check before switching. Give me a simple table to fill in for my top three plans.

Original post

See Tada (@Tada__X_)'s original post on X → (Nov 8, 2026)

Filed under Research & Planning hacks