Resignation and thoughts?

I've been feeling pretty burnt out in primary care over the past 8 years; have changed jobs 3 times and about to make a change for the 4th time, although this time into an inpatient specialty position. Can I get some feedback on wording and what to say/how to approach my supervising MDs? Having extreme anxiety! It's the first time I'm leaving a job where I do enjoy the people and staff that I work with - even the management. It's just the nature of primary care that I'm tired of. 

Does this sound appropriate? Do I say less? Or more...?

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Hi Dr. A, 

I have been interested in a change of pace in my career and was recently offered a position for an inpatient specialty position at XYZ Hospital.  I've accepted the offer with an anticipated start date in December. I spoke with NPManager about this too, and they brought up the possibility of staying with the group per diem. I really do enjoy working with everyone, so would love to be able to continue helping the department as needed. 

vs

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Hi Dr. A, 

I recently accepted an offer for an inpatient specialty position at XYZ Hospital with an anticipated start date in December. I spoke with NPManager, and they brought up the possibility of staying with the group per diem. I really do enjoy working with everyone, and really appreciate everything that I've learned here so far. I'd love to get your input on the possibility of staying per diem.

Is it too much to talk about where I'm going/what hospital I'm going to?