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Medical Team

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AdventHealth Medical Group features the services of three experienced OB-GYN physicians. Dr. Annette S. Williams and Dr. Michael Weiss serve the communities of Zephyrhills, Dade City, Wesley Chapel, Plant City, Lakeland, Spring Hill, Ridge Manor, Brooksville and surrounding areas. We can provide comprehensive, experienced and compassionate obstetric care, as well as basic to advanced gynecologic screenings and services. Dr. Williams and Dr. Weiss, have ready access to the advanced, state-of-the-art diagnostic and delivery facilities of Florida Hospital Zephyrhills. Read more about each of these specially trained physicians below.

Michael I. Weiss, MD

Dr. Michael Weiss is a board certified OB/GYN with over a decade’s experience caring for patients throughout East Pasco County. He is a skilled laparoscopic and da Vinci® robotic surgeon and he has obstetric expertise in both routine and high-risk pregnancies. He served in the United States Navy for nine years and he is a Fellow of the American College of Obstetricians and Gynecologists.

M. Olga Villa, MD

Dr. Maria Villa is a board certified OB/GYN with nearly two decades of experience in taking care of expectant mothers and women’s health needs.

Annette S. Williams, MD, FACOG

Dr. Annette Williams, co-founding physician of AdventHealth Medical Group, is a Fellow of the American Congress of Obstetricians and Gynecologists with more than 15 years of experience providing basic and advanced gynecologic care as part of the uniformed services, in private practice, and as an in-house physician at Florida Hospital Zephyrhills. Bilingual in English and Spanish, she is a highly skilled, compassionate and approachable physician with special interests in the fields of gynecologic disorders and urogynecology.