@girish also know that if you need to pay out of pocket to see someone, it's not SUPER scary costs. Probably £250 or so for an initial appointment. Then they can refer you down the NHS path with a plan/diagnosis if needed to help push you along in the queue. I really wouldn't worry too much.
I think for most fully self-funded private appointments, approximately £300 is the max. My MIL's quote for a private consultant rheumatology appointment (southwest England) was about £150 (not including any further actions like testing or treatment). When I looked for an equivalent in London, estimates were about £270-£280 (also, just for the appointment only).
You won't have difficulty or be denied having your continuity of care. The bigger "risk" is potential wait times to get on a routine schedule. But that can be overcome with a good GP or going direct if need be.
Exactly! I think the key word here is
routine. In my experience, the longest wait times are for routine things that don't have a clinical urgency. If you need a surgery (or other treatment or procedure) within X days or harm will occur, it would be rare to not receive that intervention within that timeframe.
Of course, there will be horror stories of people who have received substandard care (and they are certainly not excusable or acceptable!), but for the majority of people, there aren't significant problems accessing the care needed in a clinically appropriate timeframe.
I moved over with multiple health problems (including a pre-cancerous condition), and never faced any huge hurdles in accessing care through the NHS. If anything, the NHS was more aggressive about monitoring (and eventually treating) me than my US doctor. I've never had private insurance, and the only time I was tempted to self-fund a private appointment was recently - and even then, I was able to get an NHS appointment moved up due to my GP writing a letter, so didn't need to go private anyway.
And when I got severe COVID in the first half of 2020, considering the state of COVID medical care (when we knew nothing about this virus and doctors were essentially making it up as they went), I think I had the best care that could be offered at the time.
(It's not my intention to dissuade you from purchasing private insurance - if you want to get private insurance, totally go for it! Just thought I would chip in a bit more with some of the positive experiences I've had. Hope you can sort out what works for you!)