[jtc1983]

Though I don't know much about philosophy of science, I'm studying for a doctoral degree in philosophy and study foundations of math and related topics in philosophy of mathematics and logic (i.e., an allied subfield of philosophy). There are a couple of things to say about your experience with philosophy of physics. I.e., that philosophy of physics is not sufficiently well-informed by the details of the physics it is supposed to be about.

There are definitely philosophers, both in philosophy of physics and in philosophy of mathematics, who are far better thought of as just studying philosophy simpliciter. These philosophers tend to use relatively trivial examples from science and mathematics in a pretty flat-footed way in order to make philosophical arguments. For example, arguing in favor of Platonism on the basis of purported facts about mathematical objects rarely takes into account mathematical reasoning beyond what is accessible to an average 7 year old.

But there are also many philosophers who study the exact sciences (i.e., math and physics) that actually take the details extremely seriously. Take a look at graduates and faculty at the Pitt HPS department or the UC Irvine's LPS department (for just two examples). There are quite a few people who even get doctoral degrees in both philosophy and physics. And, at my not-at-all-HPS (but technical-leaning) department, one of my colleagues who is just finishing with philosophy already has a doctoral degree in math.

Now, obviously just bc one has a doctoral degree in the exact sciences does not thereby make them cautious in assessing what philosophical content there is to be found in studying the exact sciences. The point is just that there are plenty of philosophers who, in contrast with the experience you had (at UCLA?) in philosophy of physics, know the details well enough to have contributed original research in the exact sciences.

Two very legit philosophers of physics to check out are David Malament and Howard Stein.