Rima H. Himelstein, MD

Adolescent Medicine

Primary Office

Nemours Children's Hospital, Delaware Nemours Children's Hospital, Delaware 1600 Rockland Road Wilmington, DE 19803 Appointment: (800) 416-4441

Other Offices

Get to Know Me

Dr. Rima H. Himelstein is a pediatric adolescent medicine physician. She’s been a frequent invited speaker, researcher, and author of peer-reviewed journal articles, newspaper columns and blogs for the Philadelphia Inquirer. She’s also Clinical Associate Professor of Pediatrics of the Sidney Kimmel Medical College of Thomas Jefferson University.

Why I Treat Children

Being a pediatrician allows me to combine my interests in helping children with science and problem solving. I became a pediatrician because I love kids. I chose to focus specifically on adolescent medicine for several reasons. One is that I find teenagers to be funny, smart, honest and challenging.  In addition, I have a great deal of respect for the magnitude of psychological, social and physical changes that they go through during adolescence and puberty. Another reason I have chosen to focus my career on teenagers is that adolescent medicine involves gynecology, family planning, psychiatry, and eating disorders — areas that I find extremely interesting and intriguing.  

What I'm Passionate About

I’m passionate about helping my teenage patients navigate safely through their adolescence and rise above the challenges they may face. I’m also passionate about empowering them, by providing them with the knowledge they need, to make healthy choices, protect them from preventable diseases and avoid becoming a teen parent. I consider myself a strong advocate for teenagers and work to make sure receive the high quality of health care that they deserve. 

How I Try to Make A Difference

For each and every patient, I try to be a good listener, patient, respectful and never judgmental. In turn, I hope they feel safe in opening up to me and sharing their concerns. Only then can I truly help them.

Education & Training


  • Adolescent Medicine - Mt. Sinai Medical Center, 1991


  • Pediatrics - Mt. Sinai Medical Center, 1990
  • Psychiatry - Mt. Sinai Medical Center, 1989

Internship Residency

  • Pediatrics - Mt. Sinai Medical Center, 1988

Medical/Dental School

  • MD - University of Pennsylvania School of Medicine, 1986

Board Certifications

  • American Board of Pediatrics/Adolescent Medicine

Awards & Recognition

  • 2004 Top Docs for Kids, Main Line Today
  • 2008 Top Docs, Guide to America’s Top Pediatricians
  • 2011 Top Docs, Main Line Today
  • 2012 Top Docs, Main Line Today
  • 2001 Top Docs, Philadelphia Magazine
  • 2006 Top Docs, Philadelphia Magazine
  • 2007 Top Docs, Philadelphia Magazine
  • 2008 Top Docs, Philadelphia Magazine
  • 2009 Top Docs, Philadelphia Magazine
  • 2010 Top Docs, Philadelphia Magazine
  • 2011 Top Docs, Philadelphia Magazine
  • 2012 Top Docs, Philadelphia Magazine
  • 2013 Top Docs, Philadelphia Magazine
  • 2014 Top Docs, Philadelphia Magazine
  • 2015 Top Docs, Philadelphia Magazine
  • 2016 Top Docs, Philadelphia Magazine
  • 2017 Top Docs, Philadelphia Magazine
  • 2018 Top Docs, Philadelphia Magazine
  • 2019 Top Docs, Philadelphia Magazine

Insurance Accepted

  • Aetna Better Health FL Medicaid and Healthy Kids
  • Aetna Better Health PA Kids HMO
  • Aetna HMO
  • Aetna PPO/EPO/POS
  • Aetna PPO/POS/EPO
  • Amerihealth Caritas Delaware
  • Amerihealth Caritas Delaware NJ
  • AvMed
  • Blue Cross and Blue Shield HMO
  • Blue Cross and Blue Shield Non HMO
  • Blue Cross Blue Shield Florida Blue Select
  • Carefirst MD Community Health Plan Mcaid
  • Cigna & Great West HMO/POS Open Access
  • Cigna & Great West HMO/POS/EPO
  • Cigna & Great West PPO
  • Cigna & Great West PPO/EPO
  • Cigna/Great West HMO EPO POS
  • Cigna/Great West PPO
  • Delaware First Health
  • Delaware Medicaid/Diamond State
  • Delaware Medicare
  • Devon Health Services
  • Employers Health Network PPO
  • Evolutions Healthcare
  • Fidelis Care NJ Medicaid HMO
  • First Health Aetna PPO/EPO
  • First Health PPO
  • First Health/Affordable PPO
  • Florida Medicaid
  • Geisinger Health Plan Commercial
  • Global Medical Managment DE/PA
  • Global Medical Mangment NJ
  • Health First Health Plans
  • Health Partners Medicaid/Kidz Partner HMO
  • HealthSmart Health Plans PPO
  • Highmark Blue Cross Blue Shield of Delaware
  • Highmark Blue Cross Blue Shield of Delaware *PA Loc Contiguous to DE*
  • Highmark Blue Cross Blue Shield of Delaware *PA Loc NONContiguous to DE*
  • Highmark Blue Cross Blue Shield of Pennsylvania
  • Highmark Medicaid Health Options
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana HMO/POS
  • Humana PPO/EPO
  • Independance Blue Cross/Amerihealth/Keystone Health Plan
  • Insurance Administrators of America
  • INTEGRA Administrative Group (ClaimsBridge)
  • Keystone First Medicaid HMO
  • Lifetrac Transplant
  • Maryland Medicaid
  • Molina Healthcare Medicaid
  • Multiplan PPO
  • National Transplant (Humana)
  • New Jersey Medicaid
  • Olympus Managed Healthcare PPO DE/PA
  • Olympus Managed Healthcare PPO NJ
  • Olympus Managed Healthcare PPO ORL
  • Pennsylvania Medicaid
  • Plan Vista/NPPN PPO
  • Preferred Healthcare PPO
  • Private Health Care Systems (PHCS)
  • Private Healthcare Systems (PHCS)
  • Qualcare HMO/POS/PPO
  • Seminole Tribe of Florida
  • Simply Healthcare Healthy Kids
  • Simply Healthcare Medicaid HMO
  • Star Healthcare Network
  • Star Healthcare Network
  • Sunshine SMI/CMS 19 & 21
  • Sunshine State Health Plan Medicaid
  • Three Rivers Provider Network
  • Tricare/Humana Military Health Services/CHAMPVA
  • United Healthcare Commercial Products
  • United Healthcare Community Plan Medicaid
  • United Healthcare of the Mid-Atlantic
  • UPMC Medicaid
  • US Family Health Plan
  • Volusia Health Network PPO/EPO
  • Wellpoint Maryland Medcaid

  • Contraception
  • Gynecology

Research Activities

Dr. Himelstein has been an active researcher, concentrating on areas such as preventing teen pregnancies and youth development.

  • English