Our clinicians & staff

Sydney Z. Spiesel, PHD, MD

Syd Spiesel, the founder of our practice, received his PhD in cellular immunology from Yale University in 1972 and his MD, also from Yale, in 1975. After his pediatric internship and residency at Yale-New Haven Hospital (and some time studying developmental and behavioral pediatrics and the application of computer technology to medicine), he began teaching in Yale’s Department of Pediatrics...

Christine Butler, MD

Christine Butler has worked at West Rock Pediatrics since 1988. One of her biggest pleasures has been following patients from infancy through adolescence, getting to know them and their families personally. She finds it a joy to work with children and hopes to make a difference in their lives through optimized medical care, guidance and good communication...

Jennifer Dias, MSN, APRN, FNPC

Jennifer Dias is a Family Nurse Practitioner with a specialty in pediatrics. She graduated from Southern Connecticut State University and has since been treating patients in the New Haven area. She is committed to serving the health care needs in the community while helping children navigate into adulthood. In her spare time, Jennifer enjoys spending time with her husband and daughter.


Charlotte Mansfield

Charlotte Mansfield, Practice Manager

Kilou Czarny

Kilou Czarny, Accounting Manager

Anne Bonci

Anne Bonci, Administrative Staff

Tracy Rothwell

Tracy Rothwell, Medical Assistant

Maria Mendes

Maria Mendes, Medical Assistant

Eric Bonci

Eric Bonci, Administrative Staff

Moira McCloskey

Moira McCloskey (Retired)

Pat Davis

Pat Davis (Retired)



8 Lunar Drive #2, Woodbridge, CT 06525