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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).

Patient Reviews

Patient comments (8)

The overall average patient rating of Dr. Joannie Sun, Internist, Dermatologist is Excellent. Dr. Sun has been reviewed by 34 patients who have provided 8 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 4.9
Courteous Staff 4.8
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 4.9

Specialties & Research

Dr. Joannie Sun, MD is board certified in Dermatology.

  • She has special expertise in 5 areas:
  • Acne (Acne Vulgaris)
  • Acne Rosacea
  • Melanoma
  • Psoriasis
  • Skin Cancer

Education & Awards

Dr. Sun graduated from University of Washington, Seattle. She has 4 awards.

Patients' Choice Award (2010 - 2011, 2013 - 2015)
Compassionate Doctor Recognition (2010 - 2011, 2013 - 2015)
Top 10 Doctor - City (2014)
Newport Beach, CA
On-Time Doctor Award (2014 - 2015)


Dr. Sun has 8 hospital affiliations:

  • Hoag Memorial Hospital Presbyterian 
  • University of California, Irvine Medical Center 


  • Chinese

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Additional Information
Dr. Joannie Dorothoi Sun MD is a female Dermatologist, has 16 years of experience and practices in Dermatology and Internal Medicine.
Where does Dr. Joannie D. Sun practice?
Dr. Joannie Sun has 1 office location.
Dr. Joannie Sun practices Dermatology and Internal Medicine near Newport Beach, CA.
See Newport Beach Dermatologists and Newport Beach Internists.