Perinatal Diagnostic Center Care Team

The Perinatal Diagnostic Center’s highly trained, specialized staff offers a full range of diagnostic and therapeutic procedures as well as genetic counseling services from preconception through delivery. We are focused on meeting your medical as well as emotional needs.

Our team includes experienced sonographers (who perform ultrasound exams), genetic counselors and nurses, in addition to the physicians below.

Yasser El-Sayed, MD

Dr. El-Sayed is the Ford Family Endowed Obstetrician-in-Chief at Lucile Packard Children's Hospital Stanford, the chief of the Maternal-Fetal Medicine and Obstetrics Division at Stanford University, and a clinical professor.

Areas of expertise:Maternal & fetal medicine

Natali Aziz, MD

Dr. Aziz is the director of Perinatal Infectious Diseases at Lucile Packard Children’s Hospital, the director of Modesto Diagnostic Center and Central Valley Perinatal Services, and a clinical associate professor.

Areas of expertise:Maternal & fetal medicine

Richard Barth, MD

Dr. Barth is the chief of Pediatric Radiology and a professor.

Areas of expertise:Diagnostic radiology

Katherine Bianco, MD

Dr. Bianco is the director of the Maternal Heart Program and is a clinical associate professor.

Areas of expertise:Obstetrics & gynecology

Yair Blumenfeld, MD

Dr. Blumenfeld is the director of the Fetal Therapy Program and a clinical associate professor.

Areas of expertise:Obstetrics & gynecology

Mark Boddy, MD

Dr. Boddy is the director of Salinas Perinatal Diagnostic Center and Perinatal Services and a clinical associate professor.

Areas of expertise:Obstetrics & gynecology

Jane Chueh, MD

Dr. Chueh is the director of Prenatal Diagnosis at Packard Children’s Hospital, the director of Sequoia Perinatal Diagnostic Center and Consultative Services, and a clinical professor.

Areas of expertise:Maternal & fetal medicine

Luis Garcia, MD

Dr. Garcia is a high-risk obstetrics specialist and clinical associate professor.

Areas of expertise:Obstetrics & gynecology

Tiffany Herrero, MD

Dr. Herrero is the director of Perinatal Services at El Camino Hospital, and a clinical assistant professor.

Areas of expertise:Maternal & fetal medicine

Amy Judy, MD

Dr. Judy is co-director of the Obstetric Simulation Program and a clinical assistant professor.

Areas of expertise:Obstetrics & gynecology

Scarlett Karakash, MD

Dr. Karakash is the director of Perinatal Services at Natividad Hospital and a clinical associate professor.

Areas of expertise:Maternal & fetal medicine

Deirdre Lyell, MD

Dr. Lyell is the director of Placental Disorders Program at Lucile Packard Children's Hospital Stanford, the associate division chief of Maternal Medicine and Obstetrics at Stanford University, and a professor.

Areas of expertise:Obstetrics & gynecology