I know you addressed this to Michelle, but I can answer most of these questions, as well.
My experience was ..... after Dr. Friedman received my MRI, he called me within minutes for the phone consult. I only made one trip to Los Angeles. We flew from across the US several days before the scheduled surgery date, mainly for a bit of sight-seeing before surgery. The day before surgery was spent getting a physical from their internist, blood work, chest x-ray, etc. and an appointment with both Dr. Friedman and Dr. Schwartz who carefully went over my MRI with me and what to expect.
They do accept Medicare but you need to call their insurance department to double check on any supplemental insurance you may have and/or making sure all authorizations are in place.
My husband and I stayed the entire time in LA in Seton Hall, right next to the hospital and across the street from House Clinic. I think the cost was $60 something per night ..... very clean, very quiet, very comfortable. At that time they had a shared kitchen space for breakfast and small cooking. We actually walked through the tunnel to the hospital cafeteria most days where the food was good.
To be on the safe side, we made our return flight reservations for I think it was 12 days post-op. Other than some weather-related flight delays, I had no problems tolerating the flight home.
Michelle can tell you her experience, as well.
Clarice