Summary

Dr. Joannie Sun is a dermatologist and internist who brings three decades of medical expertise to her practice in Newport Beach. She earned her medical degree from the University of Washington School of Medicine and has dedicated her career to treating a wide range of skin conditions and providing comprehensive internal medicine care. Dr. Sun speaks both English and Spanish, allowing her to serve a diverse patient population throughout Orange County.

Dr. Sun practices at Advanced Dermatology of Orange County and maintains hospital privileges at Hoag Hospital Newport Beach in Newport Beach, California. She specializes in treating common skin concerns including skin cysts, seborrheic keratoses, and actinic keratoses. Her treatment expertise includes skin lesion removal, laser therapy for various skin conditions, and cryotherapy procedures. Patients have given Dr. Sun an average rating of 4.4 out of 5, reflecting their confidence in her compassionate and skilled approach to dermatological care.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.4
  • 30 years of experience
  • speaks English, Spanish
  • University Of Washington School Of Medicine
  • 14 written reviews
  • 2 specialties
  • 12 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 2 office locations
  • Female

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Joannie Dorothoi Sun has 2 locations

Advanced Dermatology Of Orange County

230 Newport Center Dr Ste 200Newport Beach, CA 92660
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 5:00 pm
SatClosed
SunClosed

Hoag Memorial Hospital Presbyterian

1 Hoag DrNewport Beach, CA 92663

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Dr. Joannie Dorothoi Sun, MDTrisha Khanna, MD, FAADDr. Ryan Trowbridge, MS, MA, MDDr. Anna Chacon, MD
DermatologyDermatologyDermatologyDermatology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.4 
30 Years of Experience 8 Years of Experience 12 Years of Experience 14 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English, Spanish Speaks English, Spanish, Italian, Hindi Speaks English Speaks English, French, Spanish
Newport Beach , CAOrlando , FLElkhorn , NEMiami , FL
Med School: University Of Washington School Of Medicine Med School: Columbia University College Of Physicians & Surgeons Med School: Creighton University School Of Medicine Med School: Brown Medical School
Current Profile
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Insurance Plans Accepted by Dr. Joannie Dorothoi Sun

  • Accepts Medicare

Medical Specialties

Dr. Joannie Dorothoi Sun has the following 2 specialties

Specialty Expertise

Dr. Joannie Dorothoi Sun has the following 12 areas of expertise

  • Acne (Acne Vulgaris)
  • Actinic Keratosis
  • Basal Cell
  • Excision
  • Internal Medicine
  • Melanoma
  • Mole
  • Psoriasis
  • Rash
  • Rosacea
  • Skin Biopsy
  • Skin Cancer

Certifications, License, & Education

30 Years Experience

Dr. Joannie Dorothoi Sun holds an expired medical license in the state of California.

Medical License

Medical Doctor with an expired medical license in the state of California that expired in 2025.

Education & Training

Medical School

Graduated from University Of Washington School Of Medicine and University Of Washington School Of Medicine in 1996.

NPI Number

Dr. Sun's NPI number is 1881780229.

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Frequently Asked Questions

Where is Dr. Joannie Sun's office located?
Dr. Joannie Sun's office is located at 230 Newport Center Dr Ste 200, Newport Beach, CA, 92660.
Which hospitals is Dr. Joannie Sun affiliated with?
Dr. Joannie Sun is affiliated with Hoag Hospital Newport Beach.
What languages does Dr. Joannie Sun speak?
Dr. Joannie Sun speaks English and Spanish.
Does Dr. Joannie Sun accept my insurance?
You can see the insurance plans that Dr. Joannie Sun accepts on their Vitals profile.
Is Dr. Joannie Sun accepting new patients?
Dr. Joannie Sun is accepting new patients on Vitals. View Dr. Joannie Sun's profile on Vitals to make an appointment.

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