Meet Our Specialists

Mark Zilberman, MD
Jyoti Ramakrishna, MD
Lawrence S. Milner, MD
Scott A. Schroeder, MD
Anthony Rodrigues, MD, PHD
Walter Chwals, MD, FACS, FAAP, FCCM
Cathy Rosenfield, MD


This specialty provides valuation of all congenital and acquired forms of heart disease, as well as follow-up care for children who have had cardiac surgery in Boston.

Michael de Moor, MD
Chief, Division of Pediatric Cardiology
Clinical Specialties: Pediatric and interventional cardiology
Postgraduate Training: Red Cross War Memorial Children’s Hospital, Cape Town, South Africa

Mark Zilberman, MD
Pediatric Cardiologist
Clinical Specialties: Non-invasive diagnostics
Postgraduate Training: Indiana University Hospitals and Clinics; Cincinnati Children’s Hospital Medical Center


Endocrinology is the science of treating disorders of the endocrine system, specifically hormones.

Robert C. Gensure, MD, PhD
Chief, Pediatric Endocrinology
Clinical Specialties: Diabetes, thyroid disorders, adrenal disorders, short stature, pubertal disorders, pituitary disorders, metabolic bone disease
Postgraduate Training: Tulane University; Massachusetts General Hospital

Sungeeta Agrawal
Pediatric Endocrinologist
Clinical Specialties: Pediatric endocrinology
Postgraduate Training: UCSF Benioff Children’s Hospital Oakland; Warren Alpert Medical School of Brown University/Hasbro Children’s Hospital


Gastroenterology is the medical specialty concerned with the function and disorders of the stomach, intestines, and related organs of the gastrointestinal tract.

Marcella Radano, MD
Pediatric Gastroenterologist
Clinical Specialties: Pediatric Gastroenterology
Postgraduate Training: Hasbro Children’s Hospital; Mass General Hospital for Children

Jeanne Plasse, PA-C 
Physician Assistant — Certified
Clinical Specialties: Pediatric Gastroenterology
Postgraduate Training: St. Louis University Medical Center

Jyoti Ramakrishna, MD 
Chief of Pediatric Gastroenterology and Nutrition
Clinical Specialties: Inflammatory bowel disease, food allergies, general gastroenterology
Postgraduate Training: Lady Hardinge Medical College & Affiliated Hospitals, New Delhi, India; Floating Hospital for Children at Tufts Medical Center

General Surgery

General surgery is the surgical specialty that focuses on the abdominal organs. Despite the term “general,” surgeons that practice general surgery are highly skilled surgeons that typically operate on common abdominal complaints including appendicitis, hernias, gallbladder surgeries, stomach and intestinal issues.

Walter Chwals, MD, FACS, FAAP, FCCM 
Chief of Pediatric Surgery; Pediatric Surgeon-in-Chief
Clinical Specialties: Pediatric trauma, congenital disorders requiring surgery in newborns, pediatric hepatobiliary disease, pediatric tumors (surgical oncology), pediatric obesity and minimally invasive surgery
Postgraduate Training: University of Massachusetts Medical Center; Children’s Hospital of Los Angeles; New England Deaconess Hospital and Harvard Medical School


Hematology is the science of treating blood disorders. Oncology is the science of treating cancer or tumors.

Cathy Rosenfield, MD
Pediatric Hematologist/ Oncologist
Clinical Specialties: Hemophilia, platelet disorders, sickle cell disease, bleeding and prothrombotic states
Postgraduate Training: Children’s Hospital National Medical Center, Washington; Rhode Island Hospital; Puget Sound Blood Center, WA


Nephrology is the science of treating disorders of the kidney. This specialty provides diagnosis and treatment of kidney and urinary tract problems in children.

Lawrence S. Milner, MD 
Chief, Division of Pediatric Nephrology
Clinical Specialties: Renal failure, acute and chronic, glomerular disease, liver related renal disease, hypertension, urinary tract infection, fluid and electrolyte imbalance, acute dialysis (peritoneal, hemodialysis and hemofiltration), transplantation
Postgraduate Training: Johannesburg Hospital, South Africa; Montreal Children’s Hospital/McGill University, Canada

Julie Nicoletta, MD, MA
Pediatric Nephrologist
Clinical Specialties: Hematuria, proteinuria, hypertension, renal insufficiency
Postgraduate Training: Children’s Hospital of Buffalo; Strong Memorial Hospital


Neurology is the science of treating disorders of the body’s nervous systems. This specialty provides evaluation and treatment for children with neurological disorders, including epilepsy, learning disabilities, attention deficit disorder, head injury, cerebral palsy, autism, spina bifida, and others.

John N. Gaitanis, MD
Chief, Pediatric Neurology; Assistant Professor 
Clinical Specialties: Pediatric brain malformations, epilepsy
Postgraduate Training: University of Rochester Medical Center; Children’s Hospital Boston; Beth Israel Deaconess Medical Center

Anthony Rodrigues, MD
Physician Assistant — Certified
Clinical Specialties: General neurology with special interest in pain syndromes including headaches, migraines, CRPS
Postgraduate Training: Tufts University School of Medicine; Floating Hospital for Children at Tufts Medical Center


Pulmonology is the science of treating disorders of the lungs and respiratory tract. This specialty provides comprehensive diagnosis and care for children with pulmonary (lung) conditions such as asthma, chronic cough, pneumonia, respiratory illness or respiratory disorders related to prematurity.

Scott A. Schroeder, MD
Chief, Division of Pediatric Pulmonology & Allergy  
Clinical Specialties: Childhood asthma, cystic fibrosis, chronic lung disease of infancy, pulmonary problems in children with primary immunodeficiencies
Postgraduate Training: Massachusetts General Hospital


Rheumatology is the science of treating disorders of the joints, soft tissues and connective tissues. This specialty provides diagnosis, evaluation and treatment for children with arthritis and other chronic rheumatic diseases.

Julia Zhang, MD
Attending Pediatric Rheumatologist  
Clinical Specialties: Pediatric Rheumatology
Postgraduate Training: Medical Center of Fudan University, Shanghai, P.R. China; University of California, San Francisco–Fresno Medical Education and Research; Stanford University