Jennifer O'Neill Barr
Last updated: May 17, 2017

Jennifer O. Barr

  • Gender: Female
  • Experience: 18 years
  • Graduation year: 2003
  • Sole propriator: No
  • NPI: 1629248687

Jennifer O. Barr MPH, RD, CDN, LDN

Dietitian

She is located at 721 East Lancaster Avenue in Downingtown, PA 19335. Can help patients with the following: Anorexia Nervosa, Crohn's Disease, Fatty Liver Disease, Food Allergies, Lactose Intolerance, Medical Nutrition Therapy. Her National Provider Identifier (NPI) number is 1629248687. Appointment can be made via the phone number (484) 680-5366. She also has a website where you can get more information. The website can be found at http://www.downingtownnutrition.com. She is affiliated with 1 practices.

Conditions treated

Jennifer O'Neill Barr, being an dietitian, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Jennifer O. Barr.

  • Abdominal Pain
  • Anemia
  • Anorexia Nervosa
  • Beriberi
  • Binge Eating Disorder
  • Bulimia Nervosa
  • Celiac Disease
  • Childhood Obesity
  • Constipation
  • Crohn's Disease
  • Diabetes
  • Diabetes Mellitus (DM) Type 2
  • Diverticulosis
  • Eating Disorder
  • Fatty Liver Disease
  • Feeding Tube
  • Food Allergies
  • Food Allergy
  • Food Sensitivities
  • Gastric Bypass Surgery
  • Heart Disease
  • Hiatal Hernia
  • High Blood Pressure
  • Indigestion
  • Inflammatory Bowel Disease (IBD)
  • Irritable Bowel Syndrome (IBS)
  • Lactose Intolerance
  • Malnutrition
  • Medical Nutrition Therapy
  • Metabolic Detoxing
  • Nutrition Planning
  • Obesity
  • Pediatric Nutrition
  • Pregnancy Nutrition
  • Sports Nutrition
  • Teenage Nutrition
  • Weight Gain
  • Weight Loss

Insurances Accepted by Jennifer O. Barr

  1. Independence Blue Cross
  2. Medicare

Medicare Enrollment

Jennifer O. Barr is enrolled to bill Medicare as a Practitioner - Registered Dietitian Or Nutrition Professional .

Medicare practice location(s) (city/state/zip only, as reported to Medicare):

  • DOWNINGTOWN, PA, 19335-2719

Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and is not a comment on insurance accepted, quality, outcomes, or board certification.

Studies

Graduated in 2003

Other ways to reach out

  • Website: http://www.downingtownnutrition.com
  • Facebook: https://www.facebook.com/downingtownnutrition/
  • LinkedIn: https://www.linkedin.com/in/downingtownweightcenter
  • Instagram: https://www.instagram.com/nutritionweightcenters
  • Blog: https://rdnutritionexpert.blogspot.com/

Affiliated practices

Downingtown Nutrition & Weight Management Center
721 East Lancaster Avenue
Downingtown, 19335 PA
(484) 680-5366

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Questions & Answers

Where can you meet with Jennifer O'Neill Barr?

Jennifer O'Neill Barr's office is located at 721 East Lancaster Avenue in Downingtown, PA 19335.

Does Jennifer O'Neill Barr accept patients with Independence Blue Cross?

Yes, Jennifer O'Neill Barr accepts patients with Independence Blue Cross.

What conditions does Jennifer O'Neill Barr treat?

Jennifer O'Neill Barr provides treatment for Anorexia Nervosa, Crohn's Disease, Fatty Liver Disease, Food Allergies, Lactose Intolerance, Medical Nutrition Therapy. For the full list see this list.

Does Jennifer O'Neill Barr have affiliation with practices?

Jennifer O'Neill Barr is affiliated with Downingtown Nutrition & Weight Management Center.