Dr. Nancy Nai-Hsin Sun MD is a female Emergency Medicine Specialist, has 10 years of experience and practices in Emergency Medicine.
Video profile
Dr. Nancy Sun has 2 office locations.
Allied Emergency Physicians Inc
2975 Sycamore Dr
Simi Valley, CA 93065

Phone Number
Locations and availability (2)
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).

Patient Reviews

  • Currently 3.5 of 4 stars
Patient comments (0)

The overall average patient rating of Dr. Nancy Sun is Excellent. Dr. Sun has been reviewed by 5 patients who have provided 0 comments. The rating is 3.5 out of 4 stars.

Patient Ratings
Ease of Appointment 3.6
  • Currently 3.6 of 4 stars
Promptness 3.4
  • Currently 3.4 of 4 stars
Courteous Staff 4.0
  • Currently 4 of 4 stars
Accurate Diagnosis 3.4
  • Currently 3.4 of 4 stars
Bedside Manner 3.6
  • Currently 3.6 of 4 stars
Spends Time with Me 3.4
  • Currently 3.4 of 4 stars
Follows Up After Visit 3.4
  • Currently 3.4 of 4 stars

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)
Compassionate Doctor Recognition (2013)


Dr. Sun has 5 hospital affiliations:

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


  • Mandarin

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Additional Information
Where does Dr. Nancy N. Sun practice?
Dr. Nancy Sun practices Emergency Medicine near Simi Valley, CA.
Additional practice locations include: Arcadia, CA.
See Simi Valley Emergency Physicians.