Obstetrician & Gynecologist in Miami Beach

Dr. Franz E. Rivera is an obstetrician-gynecologist in Miami Beach, Florida. A 1999 graduate of Howard University College of Medicine in Washington, DC, Dr. Rivera completed his residency in obstetrics and gynecology at neighboring George Washington University before moving to Miami Beach where he has since been in practice. Dr. Rivera is board certified by the American Board of Obstetrics and Gynecology, and he is a fellow of the American College of Obstetricians and Gynecologists (FACOG). He is affiliated with Mount Sinai Medical Center in Miami Beach, Florida and speaks multiple languages, including Spanish.

Dr. Mauricio Y. Bitran is a board-certified obstetrician and gynecologist in Miami Beach, Florida. He received his medical degree from the University of Chile in 1977. After completing his residency in obstetrics and gynecology at Tulane University School of Medicine in New Orleans, Louisiana, Dr. Bitran established his practice in Miami Beach, Florida. Among the many conditions that Dr. Bitran treats are endometriosis, abnormal vaginal bleeding, and breast disorders. He also has a special interest in maternal-fetal medicine, which focuses on managing complicated pregnancies.

Born and raised in Bolivia, Mirian J.C. Romero received her Medical degree in 1991. Certification of International Post-Graduate Mini-Residency Credited Program in the Department of: Internal Medicine Residency and Addiction Medicine 1996 at Mount Sinai Medical Center. Mirian is affiliated with Mount Sinai Medical Center in Miami Beach. Received her RN degree at FIU on 2009, Master degree in Family (FNP, ARNP) 2012, and continuing at the present with her Doctorate (DNP) at Florida International University.

Dr. Leonardo Blachar is a board-certified OB/GYN doctor in Miami, Florida. He was born in Cuba and raised in Brooklyn, New York. He earned his undergraduate and medical degrees in New York and came to Miami for residency training prior to joining Doral OB/GYN. Dr. Blachar is married with 3 sons and has lived in Florida for more than 30 years. In his spare time, he enjoys cooking, photography, and ballroom dancing. He speaks English and Spanish.

Born in Barranquilla, Colombia, Dr. Alberto Falquez moved to Miami in 2001, where he worked as a researcher at the University of Miami School of Medicine, Department of Obstetrics and Gynecology. Dr. Falquez completed his OB/GYN residency at the prestigious University of Texas Medical Branch at Galveston, graduating with several honors including a minimally invasive surgery award, student teaching award, and highest in-service examination for 2011.

Dr. Brasac works for Doral Beach OB-GYN, LLC. Dr. Pedro Brasac joined the practice in 1991 after training at the Ohio Valley Medical Center and completing medical school at The Ponce School of Medicine in Puerto Rico.

Dr. Guillermo Köhn MD, FACOG, FACS, is Board certified by the American Board of Obstetrics and Gynecology (ABOG), a Fellow of the American College of Obstetrics and Gynecology (FACOG) Fellow of the American College of Surgeons (FACS), and current Section Chief of OBGYN of Hialeah Hospital. Dr. Köhn has more than 20 years of experience in obstetrics and gynecology . After graduating from medical school at the "Universidad Nacional de Asunción" in 1996 he started his residency in Obstetrics and Gynecology at the "Instituto de Previsión Social" in his country. Concluding his training, he worked in the academic and private field for several years. In 2004, he moved to United States where he did his residency in Obstetrics and Gynecology at Flushing Hospital Medical Center / Weill Cornell in New York City. After finishing his training in 2011, he moved to the Magic City, Miami.

Coming from "La Isla del Encanto" Puerto Rico to our “Sunshine State” Florida, we are excited to introduce and welcome Dr. Franklin B. Colón-Torres to our Miami Global OB/GYN family! Dr. Colón-Torres earned his medical degree from Ponce Health Sciences University in Ponce, Puerto Rico in June 2016, and completed his 4 years of Obstetrics and Gynecology residency at University District Hospital, University of Puerto Rico. While there, he was honored with The Arnold P. Gold Foundation Gold Humanism Honor Society, and at the end of his residency, he was selected for the Gold Humanism award. Dr. Colón-Torres is dedicated to providing the most excellent OB/GYN care to women at every stage of life. He is a highly qualified physician specializing in Obstetrics, Gynecology, and minimally invasive surgeries, among the use of the most advanced technology and procedures. He joined our practice on October 1st of 2020, immediately following his training. In addition to his fluent English, Dr. Colón-Torres also speaks Spanish as his native language. Besides his continuing education and research, in his free time, Dr. Colón-Torres enjoys spending time with his family, sunny days at the beach, long drives, and motorsports. He also enjoys trying new recipes, and considers himself an amateur chef.