In a large bowl, add the chickpeas, provolone, salami, black olives, roasted red bell pepper, pepperoncini, and red onion. In a small bowl, whisk the olive oil, red wine vinegar, garlic, oregano, salt, and black pepper. Pour the dressing over the salad ingredients and toss well to combine. Taste for seasoning, adding more salt, pepper, or oregano to taste. Serve chilled or at room temperature. Refrigerate in an airtight container for up to 3 days.