Prenatal Diagnosis Center Doctors & Staff


Siva Thiagarajah, M.D.

is the medical director of the Prenatal Diagnosis Center which is affiliated with Martha Jefferson Hospital.

His medical education includes an Endocrinology and Infertility fellowship at the University of Virginia, completed in 1970, and a residency in Obstetrics/Gynecology, completed there in 1974. In 1981, he completed a fellowship in Maternal and Fetal Medicine at UVA. He is board certified in Obstetrics/Gynecology and also in Maternal-Fetal Medicine.





Fotini Vavelidis MS, CGC

has a master's degrees in human genetics and genetic counseling from Sarah Lawrence College in New York. She served as a genetics associate at the Children’s National Medical Center in Washington, DC. She then was a member in the Maternal-Fetal Medicine Division at UVA Medical Center before joining our practice. Fotini has a wealth of knowledge and experience to share. She is extremely compassionate and caring. Prior to your scheduled ultrasound procedure, Fotini will meet with you and your spouse if you are at risk for fetal chromosomal and structural abnormalities, genetic disorders, or have been exposed to various medications or other agents potentially harmful to your baby. During the visit, she will further explain and clarify those risks. She will take a detailed family and medical history and explain what the ultrasound examination and other possible tests will be like. She will also take the time to discuss abnormal results and options with the families.


Who should consider prenatal testing and genetic counseling?

  • You are pregnant and will be 35 years of age or older on your due date.
  • You are pregnant with an abnormal expanded AFP blood test. (Quad Test)
  • You have had an ultrasound of your fetus showing a possible birth defect.
  • You have already had a child or close relative with a birth defect or genetic disease.
  • You and your partner are carriers of a recessively inherited disease such as Tay-Sachs, sickle cell anemia, cystic fibrosis or thalassemia.
  • You are a carrier of an X linked disease such as Fragile X, hemophilia or muscular dystrophy.
  • You and your partner are closely related to each other (such as first cousins).
  • You have been exposed to medications, X-rays or other agents during your pregnancy that may be harmful to the developing fetus.

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Siva Thiagarajah , MD
Medical Director of PDC
Fotini Vavelidis, MS, CGC
Genetic Counselor
>>About our Staff

What We Do

High Risk pregnancy management

Genetic Counseling
Early screening for abnormalities


Appointments: 434-220- 8620
Fax: 434-220-8625

600 Peter Jefferson Pkwy Suite 190
Charlottesville, VA 22911