Home / Patient Info / Deryk Jones MD Testimonials » Dr. Deryk Jones, Erica and staff are exceptional caretakers. I have recommended them numerous times to my family and friends as well as anyone who is considering knee replacement surgery. Dr. Deryk Jones, Erica and staff are exceptional caretakers. I have recommended them numerous times to my family and friends as well as anyone who is considering knee replacement surgery. Submit Your Testimonial Posted on: 18-Oct-2017Dr. Deryk Jones, Erica and staff are exceptional caretakers. I have recommended them numerous times to my family and friends as well as anyone who is considering knee replacement surgery.