Dr Ethan Bortniker completed the 7 year BA/MD program at Boston University followed by internal medicine residency at Boston Medical Center. After a year as a hospitalist at Boston Medical Center, Dr Bortniker pursued Gastroenterology fellowship at University of Connecticut where he stayed on as faculty for 3 years actively participating in teaching, research activities in colon cancer prevention, director of motility program, and earned an MBA from UConn.
Dr. Mark Sender received his BS in Biochemistry from UC Berkeley in 1973 and his MD from Emory University School of Medicine in 1981.
Dr. Mayank Patel earned his undergraduate degree at Boston University and his MD at Tufts University School of Medicine in Boston.
Dr. Royal Park received his BS in Psychology from Brown University in 1992 and his MD from New York University (NYU) in 1996.
Dr. Shelby Morrisroe graduated summa cum laude and Phi Beta Kappa from UCLA studying human physiology and received her MD from Georgetown.
Dr. Garrett Matsunaga graduated with honors from Brown University and received his MD from the University of Texas Health Science Center.
In addition to his extensive and broad surgical experience, Dr. Timothy Lesser has written numerous articles published in peer-reviewed journals as well as a book chapter.
Dr. Alec Koo received his BS in Psychobiology from UCLA in 1982 and his MD in 1986. He completed his residency in Surgery/Urology at UCLA as Chief in 1992. Dr. Koo has been with our practice since 1992.
After completing his training in 2012, Dr. Lawrence Flechner was recruited to become a Partner at the Urology Institute of the South Bay.
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