MEET OUR PROVIDERS

At Freedom Injury Network, we are proud to introduce Steven M. Siwek, MD, MBA, one of the Valley’s foremost experts in pain management. With a distinguished career dedicated to alleviating chronic pain, Dr. Siwek brings unparalleled expertise and compassion to his patients.

Dr. Siwek earned his medical degree from New York Medical College and completed his residency and fellowship at the prestigious Mayo Clinic. Complementing his medical training, he also holds a Master’s of Business Administration from the Graziadio School of Business and Management at Pepperdine University, equipping him with a unique blend of clinical and strategic insight.

As the founder of The Pain Center of Arizona in 2002, Dr. Siwek has been a pioneer in delivering innovative, comprehensive solutions for chronic pain. Under his leadership, The Pain Center has grown to thirteen locations across Arizona, transforming countless lives through advanced care. A trailblazer in the field, Dr. Siwek has been at the forefront of developing minimally invasive surgical techniques, offering patients effective relief with reduced recovery times.

Join us at Freedom Injury Network to experience the expertise and dedication of Dr. Steven M. Siwek, a true leader in pain management.

Get to know Amanda Callahan, our dedicated Nurse Practitioner at Freedom Injury Network! Hailing from a small town in Iowa, Amanda relocated to the Phoenix area, where she began her career in the cardiac progressive unit at the Mayo Clinic. Driven by her passion for patient care, she pursued and earned her Master's Degree, graduating in 2020. Since joining the Freedom team in June 2022, Amanda has been committed to helping patients regain full functionality and enhance their quality of life.

Outside of work, Amanda stays active with gym workouts and hiking, and she enjoys the occasional country concert. She makes time to visit her parents and two brothers in Iowa whenever possible. 

We’re thrilled to have Amanda serving patients at our Peoria, Gilbert, and Scottsdale clinics, as well as providing Telemed services across Arizona.

At Freedom Injury Network, we’re proud to introduce Dr. Adam J. Siwek, one of the Valley’s premier pain management specialists. As a double board-certified interventional pain physician, Dr. Siwek brings expertise and compassion to every patient, offering cutting-edge solutions for chronic pain through a comprehensive range of interventional pain injections, implantable pain therapies, and minimally invasive spine surgeries.

Dr. Siwek earned his Doctor of Osteopathic Medicine degree from Midwestern University, laying the foundation for his patient-centered approach. He completed a surgical internship and anesthesia residency at the University of Arizona in Tucson, followed by a prestigious fellowship in Interventional Pain Medicine at the same institution. Certified by The American Board of Anesthesiology in both Anesthesiology and Pain Medicine, Dr. Siwek combines advanced technical skill with a deep commitment to improving his patients’ quality of life.

Join us at Freedom Injury Network and discover how Dr. Siwek’s expertise can help you find relief and reclaim your freedom from pain.

Get to know Donald Hair, our exceptional Physician Assistant at Freedom Injury Network! Donald earned his Bachelor of Science from the University of Arizona and went on to achieve his Master of Medical Science from Midwestern University in 2011. Since joining the Freedom team in June 2015, he has been dedicated to helping patients in the Tucson area regain full functionality and enhance their quality of life with compassionate, expert care.