Accepting New Patients
Online Booking
Telehealth
My upcoming availability
For existing patients
Use MyChart to schedule if you've seen this provider in the last 3 years.
About me
Dr. Theresa Giannattasio is a board-certified pediatrician at Atlantic Medical Group Pediatrics at Florham Park, where she provides compassionate and specialized care to young, growing patients. Dr. Giannattasio is trained to treat the unique needs of infants, children and adolescents, guiding them through each developmental stage and towards healthy lifestyle choices as they mature into adults. Dr. Giannattasio is committed to providing the highest quality medical care, advocating for her patients’ best interests, and supporting them through physical and behavioral health issues. Recognized for clinical excellence, Dr. Giannattasio has been selected as a New Jersey Family Favorite Kids’ Doc. She has also served on the National Board of Osteopathic Medical Examiners where she helped set the standards for pediatric health care by establishing assessment content for osteopathic certifying exams. Dr. Giannattasio graduated from the New York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY, before completing her residency at Newark Beth Israel Medical Center. She is part of Atlantic Medical Group and a participating provider of the Atlantic Accountable Care Organization.
SPECIALTIES
Pediatrics
AFFILIATIONS
Atlantic Medical Group
Morristown Medical Center
Overlook Medical Center
Where to see me
Insurance
Please contact the practice to confirm your health plan is accepted.
Education & Experience
TRAINING
New York College of Osteopathic Medicine
Medical School
Newark Beth Israel Medical Center
Residency
BOARD CERTIFICATIONS
Patient Reviews
5.0
- 5.0Sep 13, 2025Great first visit with our newborn! Dr. Giannatassio, Nurse Amira, and Tracey at the front desk were all wonderful!
- 5.0Jul 23, 2025Dr G is so kind and patient. She is also very professional and knowledgeable. She takes the time to answer all of our questions. The front desk was also very nice. They remembered us and are very welcoming and helpful. I'm so glad we found this practice.
- Jul 19, 2025By far, the best and most efficient physicians office!
- Jul 17, 2025Dr G is absolutely amazing. She is loved by myself and my daughter.
- 5.0Jul 2, 2025Excellent and thorough as always!!!
