Randolph Chang, M.D., is board-certified in Pain Management and Anesthesiology. Dr. Chang’s commitment to his patients and his profession can be easily exemplified by the numerous awards and certifications he has received in such fields as spinal endoscopy, IDET (intra-disc electro thermotherapy) and vertebroplasty.

Irina Dudar, M.D., is a board-certified Anesthesiologist with a specialty in Interventional Pain Management. She specializes in helping people identify their specific pain in order to find the best approaches — either invasive or conservative — for maximum quality of life. Some common conditions she treats include neuropathic, chronic back and neck, severe arthritis, chronic headache, acute shingles, herniated disc and cancer-related. Dr Dudar is fluent in Russian.

Nidal Elbaridi, M.D., P.T., Anesthesiologist, Interventional Orthopedics and Pain Medicine, Chicago Center for Orthopedics. Dr Elbaridi is a Brigham and Women’s Hospital, Harvard Medical School graduate in Interventional Pain Management and Pain Medicine. He has degrees in Physical Therapy, Anesthesiology and Pain Medicine. Dr. Elbaridi’s clinical interests include physical therapy, anesthesiology and interventional pain management.

Andrew J. Engel, M.D., is board-certified in Pain Medicine and Anesthesiology. He is a graduate of Cornell University’s Medical School. After finishing his internship at Harvard University, he completed his residency and fellowship at The University of Pennsylvania. Dr. Engel focuses on diagnosing and treating pain. He treats patients for the full range of pain conditions including sciatica, neck and spine/back pain, arthritis and joint pain, rib fractures, sports injuries, and work injuries, among other conditions.

Rajendra S. Gogia, M.D., is board-certified in Physical Medicine and Rehabilitation and Wound Care. He received wound care training & certification from the University of Ohio and completed a fellowship in pediatric orthopedic surgery at Shriners Hospitals for Children. Dr Gogia has a special interest in electro diagnosis, wound care, musculoskeletal rehabilitation, pain management and pediatric rehabilitation.

Gita Rupani, M.D., is board certified in Anesthesiology and Pain Medicine. She has a strong interest in management of acute postoperative and chronic pain using continuous regional anesthesia. She provides comprehensive medical and interventional pain management to help patients conquer the limitations caused by pain. Dr. Rupani believes compassion is an integral part of pain management.

Ryan Unger, M.D., is a pain management specialist board certified in Physical Medicine & Rehabilitation. He specializes in interventional pain procedures, evaluation and treatment of various musculoskeletal conditions, electro-diagnostic studies (EMG) and medication management.