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Jennifer Sivitz
out of 5
  • Pediatric Endocrinology
Accepting new patients



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75 E. Northfield Road Pediatric Endocrinology

75 E. Northfield Road
Livingston, NJ 07039
United States

Location Pin Icon

Berkeley Heights Pediatric Endocrinology

1 Diamond Hill Road
Berkeley Heights, NJ 07922
United States

Clinical Expertise

  • Acanthosis nigricans
  • Adolescent diabetes
  • Adrenal gland abnormalities
  • Amenorrhea
  • Bone health
  • Calcium scoring
  • Childhood diabetes
  • Diabetes
  • Early puberty
  • Hyperglycemia
  • Hyperthyroidism
  • Hypoglycemia
  • Hypothyroidism
  • Insulin resistance
  • Irregular periods
  • Nipple discharge / galactorrhea
  • Obesity
  • PCOS
  • Physical growth abnormality
  • Pituitary
  • Short stature
  • Tall stature
  • Thyroid problems
  • Type 1 Diabetes
  • Vitamin D

Accepted Insurances

Always check with your health insurance carrier before scheduling any type of service. You can learn the details of your individual health insurance plan, including the amount of your copay, deductible, and coinsurance by visiting your health insurance company's website or by calling their customer service department. Click here to review our list of accepted insurance plans.

Training and Education

Board Certification

  • Pediatric Endocrinology
  • American Board of Pediatrics
  • American Board of Obesity Medicine

Medical School

  • New York Medical College, Valhalla, NY


  • Biology, Cornell University, College of Arts and Sciences, Ithaca, NY


  • Albert Einstein College of Medicine, Long Island Jewish Medical Center, New Hyde Park, NY


  • Albert Einstein College of Medicine, Long Island Jewish Medical Center, New Hyde Park, NY


  • Harvard Medical School, Massachusetts General Hospital, Joslin Diabetes Center, Boston, MA

About Me

Jennifer Sivitz, MD is part of Summit Health’s Pediatric team. Dr. Sivitz specializes in pediatric endocrinology and diabetes care. She is experienced in treating a wide range of hormonal disorders in children and adolescents including growth failure, thyroid, adrenal, and pituitary disorders, precocious and delayed puberty, abnormal menstrual cycles, and bone and calcium disorders. Dr. Sivitz also has expertise in caring for those with Type 1 and Type 2 diabetes and has a special interest and board certification in Obesity Medicine.

Dr. Sivitz uses a collaborative approach, placing a strong emphasis on open communication and thorough explanation of the science and thought process behind each decision and course of action. She hopes to provide patients with ample knowledge and a better understanding of their disorder. Her goal is for patients to leave her office feeling confident that there is a plan in place to address their problems.

Prior to joining Summit Health, Dr. Sivitz served as attending Pediatric Endocrinologist and Medical Director of Healthy Future Pediatric and Adolescent Weight Management Program at Hackensack University Medical Center. She is a member of the Pediatric Endocrine Society.

Dr. Sivitz has presented at lectures and workshops and has made media appearances as an advocate for childhood obesity on the YES Network, Verizon Fios news, and CBS Evening News with Scott Pelley. She has been recognized as a Top Doctor by both NJ Family and Inside Jersey Magazine, a Bergen County Top Doctor for pediatric endocrinology, and recognized as one of America's top doctors by Castle Connolly. Her Weight Management program was the 2014 grant recipient for the NY/NJ Snowflake Youth Foundation.

For the past five summers, Dr. Sivitz has volunteered at an overnight camp for children with Type 1 diabetes. She is thankful for the opportunity this experience has given her to immerse herself in the lives and daily challenges of those living with diabetes and truly believes it has made her a better doctor.

When she is not working with patients, Dr. Sivitz enjoys reading historical fiction, battling it out in spin class, admiring sea life via snorkeling, and spending time with her two fabulous children and ten nieces and nephews!


Hospital Affiliations

  • Cooperman Barnabas Medical Center

Awards and Honors

  • Top Doctors 2020
  • Inside Jersey Top Docs 2017
  • NJ Fave kids doc
  • magazine cover
  • Bergen County's Top Docs 2018
  • Castle Connolly Top Doctors