Why was Sam looking for a Jewish therapist?

I’m sorry if this has already been discussed or if I’m missing the obvious.

I’m rewatching the series, and noticed in episode 1 that Sam says “I met with three different Jewish therapists.” I assumed that was because Sam was also Jewish, but I don’t recall any other indications. Also, a lot of his knowledge of Judaism comes from what Alan has taught/told him.

I was just wondering if there’s an explanation that I missed.