About Us

Thank you for choosing Millburn Pediatrics as your child's primary healthcare provider! Below, you will find important information and forms that will ensure your first visit is a satisfactory experience.


// Our Family

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Subita Mangru, MD, FAAP

Dr. Mangru has been practicing pediatric medicine in Millburn for over 20 years. Dr. Mangru graduated Summa Cum Laude from Marywood College and was awarded a scholarship to the University of West Indies, where she received her MD. She completed her pediatric residency at UMDNJ Newark and a chief residency at St. Barnabas Medical Center in Livingston, NJ. She has received the prestigious Physician Recognition Award from the AAP from 1999 to 2008. In addition to being an influential member of the local community and volunteering her expertise for organizations such as the Maplewood Public Health Office, she has managed to be a wonderful mother to her 2 sons. Dr. Mangru is a board-certified pediatrician and a fellow of the American Academy of Pediatrics.

NJ's Favorite Kids' Docs!!!

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Chhaya Batra, MD, FAAP

Dr. Batra received her undergraduate degree in Psychology from Johns Hopkins University. She completed her medical degree at UMDMJ, Robert Wood Johnson Medical School. She completed her internship and residency at St. Christopher's Hospital for Children in Philadelphia. She worked at Watchung Pediatrics from 2006 to 2011. Outside of medicine Dr. Batra enjoys sports and spending time with her husband and two sons. Dr. Batra is a board-certified pediatrician and a fellow of the American Academy of Pediatrics.

NJ's Favorite Kids' Docs!!!

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Kelly Knowles, MD, FAAP

Dr. Knowles has been happily caring for children and adolescents in this area for 16 years. She graduated magna cum laud from Middlebury College and attended medical school at the University of Rochester. Following a neurology research fellowship at Children's Hospital in Boston, she completed her pediatric residency and was selected to serve as pediatric chief resident at Tufts Medical Center in Boston. She cared for children in the emergency room and on the hospital ward for three years, before moving to New Jersey with her husband and two children. After fourteen years at Watchung Pediatrics, Dr. Knowles joined Millburn Pediatrics in 2013. Dr. Knowles is a board-certified pediatrician and a fellow of the American Academy of Pediatrics.

NJ's Favorite Kids' Docs!!!

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Nick Matarazzo, MD, FAAP

Dr. Matarazzo ("Dr. Nick") is a native of New Jersey. He earned his undergraduate degree from Yale University and attended medical school at Columbia University in New York. He is very happy to be taking care of children back in his home state .Dr. Matarazzo is a board-certified pediatrician and a fellow of the American Academy of Pediatrics.

The Team

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The team at Millburn Pediatrics are a part of this family. We have been patients, our spouses have been patients and we continue to bring our children. We all have a strong connection to this practice, some of us have worked here for over twenty years, for which we are very proud.

// A message to all new patients

We hope you will enjoy your first visit to our office. In order to enhance this experience, we would like to share our thoughts concerning the management of the practice of pediatrics.

At present we are four formally-trained, board certified pediatricians working together. This type of practice means that there will be one doctor available to you for immediate consultation almost constantly, whether it be daily, on a weekend, evening, or holiday. In rare instances when we are all away, the practice will be covered by another board certified pediatrician.

There are times when your special doctor will be away for teaching commitments at the medical school, or to attend post-graduate courses which are mandatory in this practice, or to attend conferences either at the School of Medicine or at one of the hospitals, or for normal family obligations. At these times, another doctor from our practice will be in the office to handle your problem during routine office hours; and when the office is closed, someone is always "on call" and available. "On call" means being near a telephone. You may schedule your child's Routine Well Exam with any of our four doctors. When your child is seen for a sick visit, it is the office policy to see whichever doctor is available. This ensures that your child has the opportunity to meet each doctor and vice-versa. Please call and schedule an appointment so we can see everyone in a timely manner.

Since we understand that children don't always get sick only when we are open, we have an answering service to help when your kids are sick after business hours. Please call (973) 912-0155.

We employ an around-the-clock answering service which should connect you with the pediatrician on call in minutes in case of true emergencies. If your emergency call is not returned quickly, please repeat your phone call or leave a message with the answering service. This is also true of your phone calls to our office during regular office hours. We offer a telephone consultation period from approximately 8:15 to 8:30 a.m. daily except Sundays and holidays. If you leave a message on our voice mail after 5:00 p.m., your call will be returned during the next business day. Any messages before 8:15 a.m. will be answered by the office staff during the business day.

In the office, it is our policy to follow as closely as possible the recommendations of the American Academy of Pediatrics regarding the care of infants, children, and young adults. Consequently, we insist on a yearly complete examination for all children, hemoglobin and lead, as well as keeping the immunizations current. When new vaccines are available we follow rules of leading academic organizations as to the safety of the product and at what age to use it. We are all members in good standing of the major pediatric organizations in this country and we follow their recommendations for instituting new pediatric procedures and techniques, as well as drugs and vaccines. Please know what your insurance plan covers. They all have different rules regarding the number of well visits/immunizations they will pay for per year.

We would appreciate that complete payment or co-payment for medical services and care be made at the time such services are rendered by the person who brings the child. We do not bill for co-pays. If you miss a co-pay, you will be reminded of it at your next office visit. At the time of visit, the charge slip will explain in detail the charge incurred, the payment made and the balance due. Please be advised that a co-payment is required for each visit, whether the doctor finds something wrong or not. Occasionally, we do make mistakes, so if your bill is incorrect, see the billing manager and she will make the necessary adjustments as quickly and courteously as possible. We accept cash, checks, or Visa/ Master Card/ American Express/ Discover. There is a $20.00 charge on all checks returned by the bank. There is also an additional charge for weekend visits, holidays, or walk-ins with no appointment.

If the doctor has a consult with you about another child and documents in that child's chart their findings, this is a visit and a co-pay will be charged.

Your appointment time is reserved for you. If you must re-schedule, please do so in a timely manner so we can schedule another child. Appointments cancelled within 24 hours or "no shows," will incur a $20.00 for the time reserved. If a Saturday appointment is cancelled within 24 hours or there is a no show, a $40.00 fee will be charged, as these appointments are in high demand.

There is a yearly charge of $20.00 per child for all school and camp forms completed. This helps to defray the cost of mailing and faxing the numerous requests we receive each day. We ask that you give the staff at least 1-2 weeks time to complete all forms. If you leave our practice and request copies of your children(s) records, there is also a copying fee based on the size of the chart.

Prescription renewal phone calls should be made during office hours.

Lastly, something of great importance to us. We offer our patients the Conference System. We understand that many times it is difficult to convey impressions or medical opinions in a word or two in the hospital hall or parking lot in the office, or even on the telephone. Hence, we are most happy to make time available to you. Just call and schedule some time. The health care of your family is our primary concern, and if we can promote a better understanding of any medical problem, we will be better able to serve you and your entire family.

Yours truly,

Subita S. Mangru, MD
Chhaya Batra, MD
Kelly Knowles, MD
Nick Matarazzo, MD