@roger,
My wife and I are under Medicare with Kaiser, and we do have deductibles, but from my personal experience, I really can't complain. I think my treatment for prostate cancer was about $100 total for my doctor visits, but the radiation treatment itself was included, and was treated for eight weeks.
I researched the cost for prostate cancer radiation treatment, and I saw figures anywhere from $35,000 to $50,000.
On top of all that, my doctor is one of the best I have ever had in my life. She's from India, and trained at Stanford, and I've had her for over several decades.
I think Kaiser has an established rule about time spent with each patient (I think they schedule each patient for 15 minutes), but my doctor ignores that rule and spends the needed time with each patient. Knowing this, I have waited to see her past my appointed time frequently, but I have no complaints. She's the best!