Bring a large pot of salted water to a boil. Add pasta, and cook until al dente according to package directions. Drain, rinse and set aside.
For salad, add pasta, pepperoni, provolone, red onion, cucumber, pepperoncini, red bell pepper, black olives, and parsley to a large bowl.
For dressing, combine olive oil, wine vinegar, pepperoncini brine, garlic, Dijon mustard, salt, black pepper, oregano, and Parmesan in a jar or bowl, and mix until well blended.
Pour dressing over pasta mixture and toss well to coat. Cover and refrigerate until ready to serve.