NY Partial Permanent, Need Medical Treatment in FL

[OH-NO]

New Member with questions, here is some background:

Sustained on the job back injury ca. 22 yrs ago in NY resulting in 'Permanent partial disability', continued to work and sustained additional back injury about 15 yrs ago which resulted in forced retirement, bi weekly Workers comp compensation, and SS Disability (which has recently been converted to regular SS payments).
Moved to FL thereafter.

Have not submitted any medical claims through State Insurance Fund, instead just used pain medication throughout the years for the back pains that had been prescribed for other medical condition.

I am now experiencing a significant increase in back problems, which I have reason to believe are related to the previous on the job backinjuries.

My regular Dr. here in FL wants me to have an MRI to establish what is going on.
He states that he will accept Workers Comp., but he does not have any forms that may be required to submit a claim with NY.
I contacted WC and was told that they did not know how this should be handled, and that I should contact the State Insurance Fund... which I did.
There I was told that the Dr. should just submit billings to the State Insurance Fund...No Forms (!), and that they than would make a decision on whether or not any treatment/tests would be approved/covered or controverted.
Was also told that IF the doctor has any questions, that he should call the State Insurance Fund........(?)

Does any of this sound 'kosher'. Should there not be some kind of form available to be filled out by the doctor and submitted to WC ? instead of going through the State Insurance Fund ?
I am almost tempted to submit this 'ball of wax' to my 'regular' insurance, though of course I know that's a 'no,no' (verbalized this idea to the State Ins. rep. and was told: 'can't comment on that'.....

I am also wondering which claim number should be used, the number attached to the 1st injury, the 2nd injury or both ?

ANY AND ALL ADVISE, OR INPUT WILL BE MUCH APPRECIATED !!!