Doctors + Care Team

At the Chelmsford Pediatric Specialty Center, we offer the following services from top Boston pediatric specialists: Cardiology, Developmental-Behavioral Pediatrics, Endocrinology, Gastroenterology, General Surgery, Hematology/Oncology, Nephrology, Neurology, Pulmonology and Rheumatology.

Doctors + Care Team

Walter J. Chwals, MD, FACS, FAAP, FCCM

Walter J. Chwals, MD, FACS, FAAP, FCCM

Accepting New Patients

Virtual Appointments Available

Title(s): Chief of Pediatric Surgery; Pediatric Surgeon-in-Chief; Director, Kiwanis Pediatric Trauma Institute; Professor, Tufts University School of Medicine
Department(s): Surgery, Pediatric Surgery, Pediatric Trauma
Appt. Phone: 617-636-5025
Fax #: 617-636-8122

Pediatric surgery, pediatric trauma, congenital disorders requiring surgery in newborns, GI inflammatory diseases in children, pediatric tumors (surgical oncology), nutrition in post-surgical neonates, pediatric obesity and minimally invasive surgery

View Full Profile for Walter J. Chwals, MD, FACS, FAAP, FCCM

Robert  C. Gensure, MD, PhD

Robert C. Gensure, MD, PhD

Virtual Appointments Available

Title(s): Chief, Pediatric Endocrinology; Visiting Associate Professor, Tufts University School of Medicine
Department(s): Pediatrics, Pediatric Endocrinology
Appt. Phone: 617-636-5335
Fax #: 617-636-0503

Diabetes, thyroid disorders, adrenal disorders, short stature, pubertal disorders, pituitary disorders, metabolic bone disease

View Full Profile for Robert C. Gensure, MD, PhD

picture of Heather Grossklaus, MS, CPNP

Heather Grossklaus, MS, CPNP

Online Scheduling Available

Title(s): Pediatric Neurology
Department(s): Pediatrics, Pediatric Neurology
Appt. Phone: 617-636-5356
Fax #:

View Full Profile for Heather Grossklaus, MS, CPNP

Amanda  V. French, MD

Amanda V. French, MD

Accepting New Patients

LGBTQ+ Health

Title(s): Pediatric and Adolescent Gynecologist; Assistant Professor, Tufts University School of Medicine
Department(s): Obstetrics and Gynecology, Pediatric and Adolescent Gynecology
Appt. Phone:
Fax #:

Pediatric and adolescent gynecology, including abnormal vaginal bleeding in children and adolescents, pelvic masses, congenital reproductive tract anomalies, and pediatric vulvar complaints.

View Full Profile for Amanda V. French, MD

Anthony Rodrigues, MD, PhD

Anthony Rodrigues, MD, PhD

Accepting New Patients

Virtual Appointments Available

Online Scheduling Available

Title(s): Pediatric Neurologist
Department(s): Pediatrics, Pediatric Neurology
Appt. Phone: 617-636-5356
Fax #: 617-636-8375

General neurology with special interest in pain syndromes (headaches, migraines, complex regional pain syndrome (CRPS), etc.)

View Full Profile for Anthony Rodrigues, MD, PhD

Cathy G. Rosenfield, MD

Cathy G. Rosenfield, MD

Accepting New Patients

Virtual Appointments Available

Title(s): Co-Director, Tufts University School of Medicine Hematology Course; Associate Clinical Professor, Tufts University School of Medicine
Department(s): Pediatrics, Pediatric Hematology/Oncology
Appt. Phone: 617-636-5535
Fax #: 617-636-7738

Hemophilia and other bleeding disorders, prothrombotic disorders, sickle cell and other hemoglobinopathies, general hematology

View Full Profile for Cathy G. Rosenfield, MD

Hannah Fassel, MD

Hannah Fassel, MD

Accepting New Patients

Virtual Appointments Available

Title(s): Hematologist/Oncologist; Assistant Professor, Tufts University School of Medicine
Department(s): Pediatrics, Hematology/Oncology
Appt. Phone: 978-937-6362.
Fax #:

Anemia, bleeding disorders, thrombosis, general hematology, and childhood cancers such as leukemia and lymphoma.

View Full Profile for Hannah Fassel, MD

John N. Gaitanis, MD

John N. Gaitanis, MD

Virtual Appointments Available

Online Scheduling Available

Title(s): Chief, Pediatric Neurology
Department(s): Pediatrics, Pediatric Neurology
Appt. Phone: 617-636-5356
Fax #: 617-636-8375

Pediatric brain malformations, epilepsy

View Full Profile for John N. Gaitanis, MD

Julia (Yujuan) Zhang, MD

Julia (Yujuan) Zhang, MD

Accepting New Patients

Online Scheduling Available

Title(s): Pediatric Rheumatologist; Director, Fellowship Program; Assistant Professor, Tufts University School of Medicine
Department(s): Pediatrics, Pediatric Rheumatology
Appt. Phone: 617-636-7285
Fax #: 617-636-8388

Pediatric rheumatology

View Full Profile for Julia (Yujuan) Zhang, MD

Karissa A. Brazauskas, MD

Karissa A. Brazauskas, MD

Accepting New Patients

Virtual Appointments Available

Online Scheduling Available

Title(s): Pediatric Pulmonologist
Department(s): Pediatrics, Pediatric Pulmonology and Allergy
Appt. Phone: 617-636-8100
Fax #: 617-636-7760

Pediatric pulmonology

View Full Profile for Karissa A. Brazauskas, MD

Lawrence S. Milner, MD

Lawrence S. Milner, MD

Accepting New Patients

Virtual Appointments Available

Title(s): Chief, Division of Pediatric Nephrology; Professor, Tufts University School of Medicine
Department(s): Pediatrics, Pediatric Nephrology
Appt. Phone: 617-636-7429
Fax #: 617-636-0066

Renal failure, acute and chronic, glomerular disease (especially urine microscopy), liver related renal disease, hypertension, urinary tract infection, fluid and electrolyte imbalance, acute dialysis (peritoneal, hemodialysis and hemofiltration), transplantation

View Full Profile for Lawrence S. Milner, MD

Marcella C. Radano, MD

Marcella C. Radano, MD

Online Scheduling Available

Title(s): Pediatric Gastroenterologist; Assistant Professor, Tufts University School of Medicine
Department(s): Pediatrics, Pediatric Gastroenterology and Nutrition
Appt. Phone: 617-636-3266
Fax #: 617-636-8718

General pediatric gastroenterology, celiac disease, inflammatory bowel disease, allergic disease of the GI tract

View Full Profile for Marcella C. Radano, MD

Marissa  B. Avolio, MD

Marissa B. Avolio, MD

LGBTQ+ Health

Virtual Appointments Available

Title(s): Pediatric Endocrinologist; Assistant Professor, Tufts University Medical Center
Department(s): Pediatrics, Pediatric Endocrinology
Appt. Phone: 617-636-8100
Fax #: 617-636-0535

Diabetes, thyroid disorders, adrenal disorders, short stature, delayed and precocious puberty, pituitary disorders.

View Full Profile for Marissa B. Avolio, MD

Mark V. Zilberman, MD

Mark V. Zilberman, MD

Accepting New Patients

Virtual Appointments Available

Title(s): Director, Pediatric Echocardiology and Fetal Cardiology; Director, Adult Congenital Heart Disease Clinic; Pediatric Cardiologist; Associate Professor, Tufts University School of Medicine
Department(s): Pediatrics, CardioVascular Center, Pediatric Cardiology
Appt. Phone: 617-636-2273
Fax #: 617-636-5913

Adult congenital heart disease, Non-invasive diagnostics

View Full Profile for Mark V. Zilberman, MD

Michael de Moor, MD

Michael de Moor, MD

Accepting New Patients

Title(s): Director, Pediatric Cardiac Catheterizations and Interventions; Associate Professor, Tufts University School of Medicine
Department(s): Pediatrics, CardioVascular Center, Pediatric Cardiology
Appt. Phone: 617-636-5067
Fax #: 617-636-2354

Pediatric cardiology, interventional cardiology

View Full Profile for Michael de Moor, MD

Stanley  Lau, MD

Stanley Lau, MD

Accepting New Patients

Virtual Appointments Available

Online Scheduling Available

Title(s): Pediatric Gastroenterologist; Assistant Professor, Pediatrics, Tufts University School of Medicine
Department(s): Pediatrics, Pediatric Gastroenterology and Nutrition
Appt. Phone: 617-636-3266
Fax #: 617-636-8718

General gastroenterology and nutrition, inflammatory bowel disease, celiac disease, eosinophilic esophagitis, other general pediatric GI and nutrition disorders

View Full Profile for Stanley Lau, MD