R. Bryan Klassen, MD, PhD, is an internal medicine specialist with Montage Medical Group. Dr. Klassen graduated from Stanford University’s medical school and also has a doctorate in inorganic chemistry from Massachusetts Institute of Technology. He completed his residency in internal medicine at St. Mary’s Medical Center in San Francisco. Before attending medical school, Dr. Klassen was a research scientist and professor of chemistry. Most recently, he was a UC San Francisco hospitalist as well as assistant program director and clinical preceptor for St. Mary’s internal medicine residency program.
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