Guy, I used to work at Biomet as a med device sales rep in sports medicine here in North Texas. I was probably in close to 200 shoulder cases alone, not to mention all of the acl, ankles, & elbow cases where they used our products. Being right on top of the action you get to see it all. Most of the doctors I worked with were pretty good when things went well, but you could really tell the great ones on the rare occasion when something went wrong.
In my opinion, the best shoulder doc in North Texas (possibly the State) is Dr. Daniel Worrel. He works out of the Carrell Clinic which is one of the top surgery centers in the nation. He is the head doc for the Mavericks and he and Dr. Cooper work on the Cowboys players there as well. He was also the doctor for SMU sports teams. The guy is a genius and the one I would choose if it were me or my family. He also loves to hunt, has some incredible guns, and is an all around good guy.
Saw Dr Worrel today, just got back, good news I think, he said I have "Frozen Shoulder", surgery not needed. Gave me cortisone shot, scheduled therapy for me, said see you in 3 months for follow up. He said they do not know what causes it, it just comes and then goes. Which is what happen to me about 4 years ago, I had the same issue, my Primary Physician gave me home therapy and it just went away. I just did a google search on Frozen Shoulder, link below, and yeah seems like what I have. I did get an MRI, and the report showed many "partial tears", but he just glossed over that. I asked him if he thought my bird hunting was the issue and the recoil of the gun, it was funny I could tell he was kinda rushing and ready to move on to the next patient, but when I said that, he slowed down, sat down, and wanted to talk for fun, he told me that recoil of the gun is not the problem, but a 20ga is more challenging.
https://www.webmd.com/a-to-z-guides/what-is-a-frozen-shoulder#1