Where can I find health insurance costs beyond Medicare in California?

Not understanding why you say you have lost parts B & D of Medicare and still say you have Medicare. Do you mean you still have MediCal (CA name for MedicAid)?
And how could you have lost your own Medicare due to his death?

Sorry for the misunderstanding. I have Medicare. My Supplementary insurance was Antham and my Drugs were provided by Caremark online.
I've lost the last two. I'm at a loss as to who to contact so I can make some good decisions. Right now, at this moment, I'm on COBRA which is waaay to expensive. Thank you, vegaslady.

Try insurance.ca.gov and look for the link to seniors and health insurance. That should give you a place to start.

Try insurance.ca.govand look for the link to seniors and health insurance. That should give you a place to start.