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Dr. Nikolaos Zacharias, MD

High Risk Pregnancy (MFM) Specialist

 UTMed
Call (832) 325-7131

Physician Biography


Dr. Nikolaos Zacharias earned his medical degree at the National and Kapodistrian University of Athens School of Medicine in Greece. Subsequently, he completed his internship followed by his residency in obstetrics and gynecology through Baylor College of Medicine in Houston and his fellowship in maternal-fetal medicine at The University of Texas Medical Branch at Galveston.

Board certified in obstetrics and gynecology as well as maternal-fetal medicine, Dr. Zacharias has practiced medicine in Texas since1998.  His clinical interests include prenatal diagnosis, placenta accrete, fetal anomalies, fetal growth disorders, fluid disorders, preeclampsia, preterm labor and operative obstetrics for reproductive age women.

Dr. Zacharias specializes in prenatal and perinatal care for all expectant mothers. He believes in preventive care and encourages patients to take an active part in their health to achieve optimal outcomes for all pregnancies.  He offers evidence- based, compassionate medicine and incorporates ultrasound into prenatal and perinatal care. In addition to English, Dr. Zacharias speaks Spanish, French and Greek.

In addition to treating patients, Dr. Zacharias currently serves on the faculty of McGovern Medical School at UTHealth. He is a Fellow of the American College of Obstetricians & Gynecologists and a member of the Society for Maternal-Fetal Medicine, American Institute of Ultrasound in Medicine and International Society for Ultrasound in Obstetrics and Gynecology.

Bellaire residents, Dr. Zacharias and his wife have two children. In his free time, he enjoys swimming, basketball, Greek food, jazz and classical music as well as traveling.

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Location & Contact Information
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Primary Office


Phone: (832) 325-7131
Fax: (713) 512-2216

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Other Office Locations

Phone: (713) 566-5922
Fax: (713) 566-4860

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Phone: (713) 486-6600
Fax: (713) 827-7752

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