Family Medicine

General Medicine and Pediatrics services in the Greater Miami Metropolitan Area

Internal Medicine and Geriatrics

Medical treatment for adults and older patients in a private primary care setting specializing in the diagnosis, treatment, and prevention of disease and disability in older adults.

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Welcome to MASF Docs

MASF DOCS is proud to offer medical care in a private-practice setting for everyone ranging from children to elderly. Our physicians provide primary care services in gynecology, geriatrics, internal medicine, and family medicine. Weight-loss counseling, preventive medicine and aesthetic medicine are popular services offered at the office as well. At MASF DOCS, our physicians all work compassionately towards a common goal; offering excellent medical care through personalized holistic services to all family members. Our doctors at MASF DOCS are attending physicians at Mount Sinai Medical Center-one of the area's most well-known and respected medical centers.

Welcome to MASF Docs

MASF is proud to offer medical care in a private-practice setting for everyone in your family from newborns to the elderly. Our offices are conveniently located at the heart of Miami Springs. Our physicians provide primary care services gynecology, family medicine, psychiatry, as well as providing services in preventive medicine, aesthetic medicine, and weight loss counseling. Our physicians and staff members work collaboratively to provide compassionate, personalized care that meets your needs. At MASF our doctors are united by a common goal—to offer excellent medical care and comprehensive services to all family members.

Medical Experts

Our Doctors

Roselyn Bonilla, M.D., F.A.C.O.G.

"I believe in a holistic approach with emphasis on patient education"

Guillermo Santos, D.O., M.P.H.

"We don't treat patients, we treat neighbors"


On-Site Radiological and Lab Services

We at MASF DOCS want to make going to your doctor’s office as convenient as possible. For that reason, we offer On-Site radiological and lab services, which include various kinds of ultrasounds as well as echocardiograms.

Aesthetic and Weight-loss Services

We at MASF DOCS are excited to provide you with aesthetic services which include Botox, Dermal Fillers, Skin Rejuvenation using Intense Pulsed Light (IPL), Laser Hair Reduction, Sclerotherapy (Spider Vein Removal) as well as medically supervised fitness solutions to ensure patients healthily achieve their fitness goals.

Testosterone Replacement and Erectile Dysfunction Treatment

We at MASF DOCS provide Testosterone Replacement therapy to improve the signs and symptoms of low testosterone.

Urinary Incontinence

Remember, loss of bladder control did not occur overnight. We are working the same muscles that have become weak. Success does take some time, and most importantly, it requires specific exercise recommendations to be followed.

Real Patient