Normal, free market competition does not apply to healthcare because, unlike any other market segment, transactions between patient and doctor are never fully free (voluntary).
If you go to a mall to buy a TV and see two different models offered by two producers you have THREE choices: buy TV A, buy TV B, or buy none, if both are too expensive.. When you are sick and need to see a doctor the third option is not viable - you need to be treated otherwise your condition will get worse and you might even die.
That's why free market in healthcare causes high price inflation: you are not buying a product, you are buying your own life and well being.