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Jennifer Llewellyn
out of 5
  • Nutrition Services
  • Diabetes Self-Management Education
  • Wellness and Complementary Medicine
Accepting new patients

Appointments: Call 201-796-2255


Location Pin Icon

31-00 Broadway Nutrition Services

31-00 Broadway
Fair Lawn, NJ 07410
United States

Clinical Expertise

  • Adolescent diabetes
  • Adult onset diabetes
  • Allergies
  • Anorexia
  • Arthritis
  • Asthma
  • Blood glucose test
  • Blood pressure
  • Blood sugar level
  • Brittle diabetes
  • Bulimia
  • Celiac disease
  • Childhood diabetes
  • Chronic fatigue
  • Chronic renal failure
  • Colitis
  • Compulsive overeating
  • Constipation
  • Crohn's disease
  • Dehydration
  • Depression
  • Diabetes insipidus
  • Diabetes management
  • Diabetes mellitus
  • Diet
  • Diet Plans
  • Digestive problems
  • Eating disorders
  • Fatigue
  • Food allergies
  • Gastrointestinal disorder
  • Gastrointestinal problems
  • Gestational diabetes
  • Glucose tolerance test
  • Heart Disease
  • Hemoglobin A1c
  • High Cholesterol
  • High blood pressure
  • High blood sugar
  • High blood sugar management
  • High hemoglobin A1C
  • Hyperglycemia
  • Hypertension
  • Hypoglycemia
  • Hypothalamic DI
  • IBS
  • Impaired fasting glucose
  • Impaired glucose tolerance
  • Impotence
  • Increased thirst
  • Increased urination
  • Indigestion
  • Insomnia
  • Insulin
  • Insulin pump management
  • Insulin resistance
  • Ketone
  • Lose weight
  • Menopause symptoms
  • Menstrual problems
  • Mood disturbances
  • Musculoskeletal conditions
  • Musculoskeletal problems
  • Myofascial pain
  • Nausea
  • Nephrogenic DI
  • Nutrition
  • Obesity
  • Oral glucose tolerance test
  • Osteoarthritis
  • Overweight
  • Palliative Care
  • Pituitary DI
  • Postoperative recovery
  • Prediabetes
  • Pregnancy complication
  • Prostate problems
  • Reactions to chemotherapy
  • Rebalancing
  • Reduce risk of disease
  • Sciatica
  • Sores slow to heal
  • Stress
  • Triglyceride
  • Type 1 DM
  • Type 2 DM
  • Uncontrolled Diabetes
  • Urine concentration
  • Weight Management
  • Weight loss
  • Weight loss goals
  • Weight loss plan
  • body composition analysis

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


  • National Certification Board for Diabetes Educators
  • Commission on Dietetic Registration
  • Adult Weight Management


  • Nutrition, The Pennsylvania State University, University Park, PA


  • Southern Regional Medical Center, Atlanta, GA

About Me

Jennifer A. Llewellyn, RD, CDE is a member of Summit Health's Nutrition Services department. Ms. Llewellyn is a certified diabetes educator and has expertise in adult weight management, prediabetes, diabetes and the management and prevention of related complications. She also has experience with general nutrition in relation to many chronic disease states.

Ms. Llewellyn refers to evidence-based medical and nutrition advice when working with her patients. She recognizes the many factors that contribute to a person’s nutritional health and believes sometimes big solutions can come from very small, specific changes in a person’s routine. Based on that understanding, Ms. Llewellyn takes a whole person approach to care, examining each patient’s day to day routines including their food choices, food preferences, social stressors, and any physical limitations that may exist.

Ms. Llewellyn joins Summit Health from St. Joseph’s Regional Medical Center in Paterson, where she worked for the past 12 years. She also has prior medical experience in settings including Montville Family Practice in Montville, NJ, and Chilton Diabetes Outpatient Center in Pompton Plains. Ms. Llewellyn is a member of the American Association of Diabetes Educators.

When she is not working with patients, Ms. Llewellyn loves to travel and spend time enjoying outdoor activities including hiking and bike riding at the beach. She is a clean environment and animal welfare advocate as well as a dog lover.