About the Practice

We offer medical care in a private-practice setting for everyone: newborns to the elderly. Our offices are conveniently located at the heart of Miami Springs. Our physicians provide primary care services in obstetrics and gynecology, family medicine, psychiatry, and preventative medicine. We also provide aesthetic medicine, and weight loss counseling. At MASF our doctors are united by a common goal—to offer excellent medical care and comprehensive services to all family members—and using the latest in medical advancements work together to provide our patients with the personalized and holistic care they deserve. Our physicians and staff members work collaboratively to provide compassionate, personalized care that meets your needs.

We are located in Miami Springs, Florida, the practice serves the Miami Springs-Doral-Hialeah area. Our physicians at MASF are faculty members of NOVA and attending physicians at Mount Sinai Medical Center—one of the area’s most well known and respected medical centers. Our physicians have access and, often times, working relationships with top specialists in a variety of areas, and can help facilitate consultations or referrals as needed.

Dr. Roselyn Bonilla, Dr. Guillermo Santos, Dr. Fernanda Mercade

Providers

Dr. Roselyn Bonilla

Obstetrics & Gynecology

Dr. Roselyn Bonilla is certified by the American Board of Obstetrics and Gynecology. She completed her medical degree and training and began practicing in New York, but she is originally from Puerto Rico. Dr. Bonilla is married and has two children.

Dr. Roselyn Bonilla is certified by the American Board of Obstetrics and Gynecology. She completed her medical degree and training and began practicing in New York, but she is originally from Puerto Rico. Dr. Bonilla is married and has two children.

Dr. Guillermo Santos

Family Medicine

Dr. Guillermo Santos is a board certified family practice physician. His practice, Medical Associates of South Florida, provides both family medicine and OB/GYN services, so they can care for the medical needs of your whole family - men, women, and children. Originally from New York City, Dr. Santos completed his bachelor's degree and master of public health administration at NYU, and his medical degree from the New York College of Osteopathic Medicine. He also performed his residency in the Bronx and managed a private practice in Manhattan until he moved to Miami in 2004. Dr. Santos is married with three kids. He speaks both English and Spanish.

Dr. Guillermo Santos is a board certified family practice physician. His practice, Medical Associates of South Florida, provides both family medicine and OB/GYN services, so they can care for the medical needs of your whole family - men, women, and children. Originally from New York City, Dr. Santos completed his bachelor's degree and master of public health administration at NYU, and his medical degree from the New York College of Osteopathic Medicine. He also performed his residency in the Bronx and managed a private practice in Manhattan until he moved to Miami in 2004. Dr. Santos is married with three kids. He speaks both English and Spanish.

Dr. Fernanda Mercade

Internal Medicine

Fernanda Mercadé, M.D. received her Medical Degree from the University of Buenos Aires, School of Medicine. She completed her Internal Medicine residency at Metropolitan Hospital- New York Medical College and Geriatric Fellowship at Montefiore Medical Center-Albert Einstein College of Medicine. Dr. Mercadé is originally from Argentina. She was Medical Director at Camillus House and Medical Director at Memorial Regional Healtcare Systems. Dr. Mercadé is a member of the attending staff at Mount Sinai Hospital.

Fernanda Mercadé, M.D. received her Medical Degree from the University of Buenos Aires, School of Medicine. She completed her Internal Medicine residency at Metropolitan Hospital- New York Medical College and Geriatric Fellowship at Montefiore Medical Center-Albert Einstein College of Medicine. Dr. Mercadé is originally from Argentina. She was Medical Director at Camillus House and Medical Director at Memorial Regional Healtcare Systems. Dr. Mercadé is a member of the attending staff at Mount Sinai Hospital.