After some digging, I found this post by @Meaner03all the way back from 2 years ago:
Apparently the doctor who put Britney on another 5150 psychiatric lockdown is Deborah Nadel MD in California:
https://www.linkedin.com/in/deborah-nadel-06383912
Funny thing here is that in her LinkedIn profile, she was specialized in "estate planning issues" (I AM NOT KIDDING).
It was insane how well connected the conservatorship and guardian abuse team to secure every spot necessary. We have Goetz and Penny as the judge, Wallet, Thoreen as the lawyer, and Deborah Nadel as the doctor. That is why Britney demand a no-evaluation on termination of her conservatorship and mention how everybody in the conservatorship needed to be put in jail.
So if you guys are free, you can find this person in 304 Euclid St, Santa Monica, CA 90402, and phone: +1 310-453-3385 and ask her why she put Britney on another 5150 lockdown lol.