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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Nancy Sun:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. Nancy Sun is Excellent. Dr. Sun has been reviewed by 9 patients who have provided 0 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.1
Promptness 4.1
Courteous Staff 4.7
Accurate Diagnosis 3.7
Bedside Manner 3.9
Spends Time with Me 3.7
Follows Up After Visit 3.7

Specialties & Research

Dr. Nancy Sun, MD is board certified in Emergency Medicine.

Education & Awards

Dr. Sun graduated from George Washington University. She has 2 awards.

Patients' Choice Award (2013 - 2014)
Compassionate Doctor Recognition (2013)


Dr. Sun has 5 hospital affiliations:

  • St. John's Regional Medical Center 
  • Simi Valley Hospital 


  • Mandarin
  • English

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Additional Information
Dr. Nancy N Sun MD is a female Emergency Medicine Specialist, has 12 years of experience and practices in Emergency Medicine.
Where does Dr. Nancy N. Sun practice?
Dr. Nancy Sun has 1 office location.
Dr. Nancy Sun practices Emergency Medicine near Simi Valley, CA.
See Simi Valley Emergency Physicians.