Kayvan Haddadan, MD

Dr. Kayvan Haddadan is the President and Medical Director of Advanced Pain Diagnostic & Solutions, located in California. Dr. Haddadan founded the practice in 2012 and has served as its pain management physician for the past eleven years. He works to ensure that each member of the group’s multi-disciplinary clinical team is focused on diagnosing and confirming the source of each patient’s pain, and then carefully developing and documenting the most effective treatment plans.

Dr. Kayvan Haddadan earned his Bachelor of Science degree from the College of Alborz in Tehran, Iran, and his Medical Doctor degree at Shahid Beheshti University of Medical Sciences. Afterward, he went on to receive his Educational Commission for Foreign Medical Graduates (ECFMG) Certificate in Philadelphia before undergoing an internship in Medical Surgery at Loyola University Medical Center’s Stritch School of Medicine in Illinois. Once he’d completed his internship Kayvan decided to fulfill his residency at Stritch School of Medicine in Physical Medicine & Rehabilitation.

Following his time in Illinois, Kayvan went on to complete his Fellowship in Pain Medicine at California Pacific Medical Center’s Pacific Pain Treatment Center while also training in Medical Acupuncture for Physicians from the University of California, Los Angeles, David Geffen School of Medicine. To say that Dr. Kayvan Haddadan is driven and hard-working would be an understatement. Throughout his career as a healthcare professional and a researcher, Dr. Haddadan has been published in 29 different research papers and projects. His research includes studies in gastroenterology, pulmonology, infectious disease, pain management, endocrinology, and cardiology.

Besides being a licensed Physician and Surgeon with the Medical Board of California, Kayvan is also certified in Controlled Substance Registration through the DEA, a Qualified Medical Examiner through California’s Department of Industrial Relations Division of Workers Compensation and double board-certified in Pain Medicine and Physical Medicine & Rehabilitation through the American Board of Medicine and the Board of Physical Medicine and Rehabilitation, respectively.

Advanced Pain Diagnostic & Solutions

Christopher Brophy, MD

Dr. Christopher Brophy is a board-certified pain medicine specialist known for his compassionate care and easygoing bedside manner. He earned his Doctor of Medicine degree from the Keck School of Medicine of USC and completed his internal medicine internship at Adventist Health White Memorial. Dr. Brophy then pursued a residency in physical medicine and rehabilitation at UCLA Medical Center, followed by a pain medicine fellowship at UC Davis. Alongside his medical career, he enjoys powerlifting, cycling, and analyzing films. Dr. Brophy has joined Advanced Pain Diagnostic & Solutions, where he focuses on helping patients find relief from chronic pain through personalized, comprehensive care.

TJ Maroon

TJ Maroon, MD

He received his medical training at UC Davis School of Medicine and continued his residency and post graduate training at the UCD Medical Center in Sacramento, California. He is board certified in Anesthesiology (1999) and Bariatric Medicine (2012) and treats youth, adolescent, and adult patients.

Dr. Maroon has been providing specialized medical services, including pain management and bariatric medical services, in Sutter, Yuba, Sacramento and Placer counties since 2010. Prior to that, he worked as an instructor in Heald College, Roseville, teaching medical assisting students medical terminology, anatomy, physiology, and medical laboratory skills.

Jianxun Zhou, MD, PhD

Board Certified in Physical Medicine & Rehabilitation and Electrodiagnostic Medicine, Dr. Zhou received his medical degree from Peking University Health Service Center in Beijing, China prior to earning his PhD in Philosophy from the University of Pittsburgh, School of Health and Rehabilitation Science. He then went on to continue his residency in Internal Medicine and Physical Medicine and Rehabilitation at Albany Medical Center in New York. After residency, Dr. Zhou decided to fulfill his fellowship in Interventional Spine and Electrodiagnostic Medicine at University of Massachusetts Medical Center Memorial Hospital.

 Dr. Zhou is a knowledgeable, an unbiased, and an empathetic medical professional that brings with himself many years of experience in the healthcare atmosphere. He takes the necessary time to establish respect and trust with each patient in order to get to the bottom of their health problems.