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Zan Yi, MD

DrYiDr. Zan Yi is a Senior Oncologist at the Burzynski Clinic. After receiving his medical training from China, he came to the US and obtained a Ph.D. degree in Molecular Genetics at the University of Arizona. Dr. Yi completed his Internal Medicine residency at Bridgeport Hospital Yale University Program, followed by Hematology-Oncology subspeciaty training at New York University Medical Center. Dr. Yi provides Hematology and Oncology consultation services in compliance with published NCCN (National Comprehensive Cancer Network) guidelines. He has published numerous papers on basic research. He has particular interest in applying molecular genetics in the diagnosis and treatment of cancer patients. 







Gregory S. Burzynski, MD


Dr. Gregory Burzynski joined the medical team at the Burzynski Clinic in the summer of 2010. He is now the Vice President of the Burzynski Clinic and oversees many operations.  Dr. Gregory Burzynski graduated from the University of Texas at Austin with a Bachelor of Science in Neurobiology and later studied medicine at the Jagiellonian University Medical College in Krakow, Poland.  He completed his internal medicine residency at the UT Southwestern Internal Medicine Residency Program at Seton Family of Hospitals in Austin and is Board Certified in Internal Medicine. Currently, he is a member of the American Medical Association, American College of Physicians and The Society of Neuro-Oncology.  Dr. Gregory Burzynski’s goal is to optimize personal medicine at the Burzynski Clinic.





 Alejandro A. Marquis, MD

alexmarquisDr. Marquis has been a senior physician at the Burzynski Clinic since October 2006. He did his undergraduate work at The University of Texas at Austin where he graduated from the College of Pharmacy. He later graduated from medical school from The University of Texas Medical Branch at Galveston followed by his internship and residency program completed through Central Texas Medical Foundation, Family Practice Residency Program, Brackenridge Hospital, Austin, Texas.

Prior to working at the Burzynski Clinic, Dr. Marquis had a private practice in Austin, Texas, which included clinic work, daily hospital rounds and an extensive nursing home practice.



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