No, you don't need to tell your current doc you are going for a 2nd opinion. As long as you are not getting medications, you are fine.
No, the insurance company doesn't care. I've had multiple insurances over the last five years and have never had any problems with this type of thing.
You aren't even starting care with the new doc; you are interviewing them. I would suggest NOT telling your current doc until you find your new doctor. Once you do, you can then switch over. You can terminate your relationship w/ your current doc via a letter; I would definitely have it in writing if you have any type of signed contract.
The new doc won't find out about the second opinion UNLESS the doctor you consult with sends their notes to him. I would specifically ask the docs you interview NOT to do this. Explain what you are doing; you are interviewing docs to find a better quality of care. The only reason they would care is if, again, they were giving you medication.
I'm actually going to do exactly what you are doing. I want a second opinion re: getting my pain pump implantation. I found that there is another doc about 20 minutes from here that has a good success rate w/ the pump. I don't want to terminate my current relationship w/ my doctor. I just want a 2nd opinion. I will make the appt., go the appt., and see what happens. If I really like this new doctor, I'll weigh the pros/cons and maybe switch doctors. If I do, I'll write my current doc a letter, thanking him for his care but that I've found another doctor that I'm going to go with.
Are you really worried about making your doc mad....or is it that you are afraid you won't find another doc, and that your current doctor will find out and stop prescribing your meds? A doctor can't do this for getting a 2nd opinion. Even though we are literally shopping for a new doctor, "doctor shopping" (in it's negative context) only deals w/ getting meds from multiple sources w/out the others knowing. All you are doing is getting a 2nd opinion.
Diagnosed with: POTS/dysautonomia; Fibromyalgia; Severe Hypertension; Hypothyroidism; Adrenal Gland Disorder; Chronic Pain - severe carpal tunnel syndrome, migraines, severe back problems, widespread muscle/joint pain....as well as depression/anxiety.
Current Meds: 480mg MS Contin, 90mg MSIR, Soma, Effexor and MANY other meds (heart, thyroid, etc)
Past Meds: EVERYTHING. Fentanyl patches, Actiq (which caused $$$ in dental work), Fentora, Oxycontin, Oxycodone, Kadian, Avinza, Dilaudid and on the list goes.
Waiting On: Intrathecal Drug Pump Implantation (Dilaudid/Baclofen combo)