In almost every situation, no. Putting medical debt on a credit card is one of the most expensive ways to handle it, and you give up important protections when you do.
Why it's usually a bad idea:
Interest rates: The average credit card APR is around 21% to 24%. Most hospital payment plans charge 0% interest. Even medical debt in collections can often be negotiated to a lower total amount than what you'd pay with years of credit card interest. A $5,000 medical bill paid over 3 years at 23% APR costs you about $7,000 total. The same bill on a hospital payment plan at 0% interest costs you $5,000.
You lose negotiating power: Once you put medical debt on a credit card, it's no longer medical debt. It's credit card debt. You can't negotiate with the hospital for a discount anymore. You can't apply for financial assistance. You can't dispute the bill with the provider. You've essentially paid the provider in full (via the credit card) and now owe a credit card company that has zero flexibility on the balance.
Credit reporting differences: Medical debt is treated more favorably on credit reports than credit card debt. Under current rules, medical collections under $500 don't appear at all, paid medical collections are removed, and there's a 12-month grace period before unpaid medical debt shows up. Credit card balances, on the other hand, are reported immediately and high balances relative to your credit limit hurt your score through utilization.
Legal protections: Medical debt has specific consumer protections that credit card debt doesn't. Many states have additional protections for medical debtors, including limits on garnishment, expanded charity care requirements, and longer statutes of limitations.
The one exception: A 0% APR balance transfer card with a promotional period long enough to pay off the balance could make sense if you're confident you can pay it off before the promotional rate ends. A 15-month 0% card for a $3,000 bill that you can pay at $200 per month would work. But if there's any chance you'll carry a balance past the promotional period, the regular APR (often 22% to 28%) kicks in and you're worse off than where you started.
Better alternatives: Ask the provider for a payment plan first. Most hospitals offer 0% interest plans. Apply for financial assistance. Negotiate a reduced lump sum payment if you have some cash. Even a collection agency will often accept 25% to 50% of the balance. Any of these options is almost certainly cheaper than credit card interest.