In a large skillet, heat the olive oil over medium-high heat. Add the chicken pieces, season with salt, pepper, garlic powder, and onion powder. Cook until the chicken is browned and cooked through, about 5-7 minutes. Remove the chicken from the skillet and set aside.
In the same skillet, add the chicken broth and bring to a simmer, scraping up any browned bits from the bottom of the pan.
Stir in the sliced pepperoncini peppers and heavy cream. Allow the mixture to simmer for about 3-4 minutes until slightly thickened.
Add the cooked chicken back to the skillet along with the dried Italian herbs and Parmesan cheese. Stir until the chicken is well coated and the cheese has melted.
Cook for an additional 2-3 minutes to heat through. Taste and adjust seasoning if necessary.
Garnish with chopped parsley before serving.