Personally, I wouldn't recommend that you attend a bootcamp if you already have a graduate CS degree because the cost (time and money) isn't worth the benefits (an entry level developer job, which you can probably obtain on your own given your credentials).
For you specifically, the only things that you'll get of a bootcamp are probably:
1) An expedited and structured learning process
2) Mentorship and peer support
3) Introduction to startups in the valley looking to hire entry level, junior developers
However, if you feel compelled and really want to attend a bootcamp in the valley, I have heard good things about:
Hackreactor and Hackbright for web-development
App Academy for mobile development
Insight Data Science and ZipFian for data science
For you specifically, the only things that you'll get of a bootcamp are probably: 1) An expedited and structured learning process 2) Mentorship and peer support 3) Introduction to startups in the valley looking to hire entry level, junior developers
However, if you feel compelled and really want to attend a bootcamp in the valley, I have heard good things about: Hackreactor and Hackbright for web-development App Academy for mobile development Insight Data Science and ZipFian for data science
Hope that helps.