Our Doctors

Dr. Alexander Iezza, MD

Dr. Alexander P. Iezza is a board-eligible orthopaedic surgeon and the most recent addition to the staff at Redwood Orthopaedic Surgery Associates. He recently completed his spine fellowship at Stanford University and during that time was a clinical instructor in the department of orthopaedic spine surgery. Dr. Iezza provides comprehensive care of spine problems to ROSA patients.

Dr. Iezza received his undergraduate degree from UC Davis with degrees in chemical and biomedical engineering. He then graduated from The Chicago Medical School where he received his medical degree and was a member of the prestigious Alpha Omega Alpha medical honor society. Dr. Iezza completed his orthopaedic surgery residency at Stanford University, scoring in the 100th percentile for his in-training exam. Finally, Dr. Iezza completed an orthopeadic Spine fellowship at the combined Stanford University/St. Mary’s Hospital program under the guidance of Dr. Eugene Carragee.

Dr. Iezza has written several articles about surgeries of the spine, and two of those articles have been published in one of the leading orthopedic journals, Spine.

Dr. Thomas Chang, DPM

Dr. Thomas J. Chang is a board-certified and highly skilled podiatric surgeon with over 20 years of experience treating a wide range of foot and ankle conditions. He has been a staff member at Redwood Orthopaedic Surgery Associates since 2006. He is a Clinical Professor and Past Chairman of the Department of Podiatric Surgery at the California College of Podiatric Medicine in San Francisco and the Past Chief of Podiatric Surgery at the UCSF/ Mt. Zion Medical Center.

Dr. Chang graduated with his doctorate degree from the Temple University School of Podiatric Medicine, where he was a member of the Pi Delta National Podiatry Honor Society and recipient of the Professor Louis M. Newman Surgery Award. He then completed a three-year residency program in Podiatric Medicine and Surgery at Emory/Northlake Regional Medical Center in Atlanta, Georgia.

Dr. Chang has been recognized multiple times over the years for contributions to his field. Some of these honors include: "Top 150 Most Influential Podiatrists" in 2006, appointment to the Board of Podiatric Medicine for the State of California, elected to the Regional Division Board of Directors for the American College of Foot and Ankle Surgeons, and a "Top Doc" at Santa Rosa Memorial Hospital in 2011. He continues to provide numerous lectures for Continuing Medical Education courses to impart his expertise to other doctors.

In addition to his training and practice duties, Dr. Chang also holds several appointments at local hospitals and medical schools, including:

• California College of Podiatric Medicine - Clinical Professor
• Santa Rosa Memorial Hospital and Sutter Medical Center of Santa Rosa – Past Chief of Podiatric Medicine and Surgery

He has contributed many articles to medical journals for emerging surgical technologies, and has also participated as a co-investigator and sub-investigator for relevant research studies. However, he is most proud of his textbook, "Master Techniques in Podiatric Surgery: The Foot and Ankle" which has sold over 6,000 copies worldwide and 25% of the sales goes towards international medical mission funds. Dr. Chang serves on the editorial board of the Journal of the American Podiatric Medical Association and Podiatry Today Magazine.

Natalie Carlberg, PA-C

Natalie Carlberg is a certified Physician Assistant with nearly ten years of experience in an orthopaedic setting. She joined Redwood Orthopaedic Surgery Associates in 2007 and has skillfully assisted our surgeons with a wide range of services.

Ms. Carlberg graduated with a Bachelor's degree in Biology from Sonoma State University before pursuing Physician Assistant studies with an additional degree from the University of Alabama, Birmingham. During her training, she completed surgical rotations in orthopaedics, general, major vascular, cardiac, plastic and OB/GYN.

After graduation, Ms. Carlberg practiced with Surgical Physician Assistants, Inc. and then the Spine Clinic of Monterey Bay before joining our team at Redwood, where she assists with wound closure, joint injections and more.

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