Grace Wenjun Guo, MD

Medical Imaging

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

I grew up in China’s Hunan province as an active, athletic child. My mom was a physician and my dad was a medical school professor, so I had great role models. Today I’m a radiologist focusing on pediatric musculoskeletal and body imaging, with concentration on X-rays, MRIs, CT scans, ultrasound, and fluoroscopy (how things move inside the body). I am certified in diagnostic radiology and subspecialized in pediatric radiology by the American Board of Radiology. I have been working over 17 years, and remain an active member of the Radiological Society of North America and Society of Pediatric Radiology.

Why I Treat Children

I really like kids, and I’m glad to help whenever I can. I work closely with clinical teams to help make sure each child’s diagnosis is correct. I enjoy sharing my expertise with other physicians and learning from them. It’s great to get an understanding of how they approach a diagnosis.

What I'm Passionate About

I think everyone should have access to quality healthcare. Nemours does because we treat all children regardless of their ability to pay. That’s important to me. I have a passion to be part of excellent medical care for children and do my best to provide the best services possible for each child. I believe in working as a team with the medical associates, patients and families to provide compassionate and high-quality care. My medical interest include: Ultrasound  Musculoskeletal imaging

How I Try to Make A Difference

I will keep learning to improve my services with updated knowledge and advanced technique, and ensure each child receives the best care possible.

Education & Training


  • Pediatric Radiology - Riley Children's Hospital, 2003


  • Internal Medicine - Mount Carmel Hospital West, 1998


  • Radiology - Wishard Memorial Hospital, 2002

Medical/Dental School

  • MD - Hunan Medical University, 1984

Board Certifications

  • American Board of Radiology/Pediatric Radiology
  • American Board of Radiology/Diagnostic Radiology

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
  • Alabama Medicaid/Patient First
  • AmeriGroup GA MCAID HMO JAX/GA
  • AmeriGroup GA PeachCare For Kids Jax/GA
  • Amerihealth Caritas Delaware
  • Amerihealth Caritas Delaware NJ
  • AmeriHealth Caritas Florida (FKA Prestige Health Choice)
  • AvMed
  • Blue Cross and Blue Shield HMO
  • Blue Cross and Blue Shield Non HMO
  • Blue Cross Blue Shield Florida Blue Select
  • 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
  • Community Care Plan Medicaid
  • 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/Affordable PPO
  • Florida Medicaid
  • Florida Medicare
  • Geisinger Health Plan Commercial
  • Georgia Medicaid/Georgia Better Health/Peachcare
  • 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
  • New Jersey Medicaid
  • Olympus Managed Healthcare PPO NJ
  • Olympus Managed Healthcare PPO ORL
  • Pennsylvania Medicaid
  • Plan Vista/NPPN PPO
  • Preferred Healthcare PPO
  • Prime Health Services PPO Specialty Florida
  • 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
  • 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

Research Activities

I’ve done research into how we can reduce the radiation used in some diagnostic procedures, so we can make them safer.

Medical Interests

  • Pediatric radiology

  • English
  • Mandarin