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(714) 712-3399
(888) 881-3136

Weekdays between the hours of 8 a.m. and 5 p.m.

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Chuan- Ju (Gwendolyn) Pan, MD
Practice accepting new patients.

Chuan- Ju (Gwendolyn) Pan, MD

(714) 541-6622
Primary Specialties
  • Hematology
    (Board Certified)
  • Oncology - Medical
    (Board Certified)
Secondary Specialties
  • Internal Medicine
    (Board Certified)
Medical Groups & Affiliations
  • St. Joseph Heritage Medical Group
  • St. Joseph Hospital Affiliated Physicians
  • Additional Languages Spoken
    Chinese, Taiwanese

Primary Office

1010 W. La Veta Ave.
Suite 250
Orange, CA 92868
(714) 541-6622
(714) 541-0531
Mon - Fri: 8 a.m. - 5 p.m.

Secondary Office

(949) 727-4225
(714) 541-0531
Tue 9 a.m. - 12 p. m
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Physician Bio

Chuan-Ju Gwendolyn Pan, MD (Gwen Pan) is a specialist in Cancer and Blood Disorders. Dr. Pan is born and raised in Taiwan, and came to the U.S. for college. She graduated from UCLA with highest honors in Chemistry and Biochemistry, and received her MD degree from the University of Vermont in Burlington, Vermont. Dr. Pan then came back to California for her Internal Medicine Residency and Hematology/Oncology Fellowship at the University of California Irvine Medical Center. She is fluent in English, Mandarin Chinese, and Taiwanese. Dr. Pan's clinical interests focus on individualized treatments of cancers and blood diseases. Dr. Pan aims for the best patient care by implementing the latest scientific discoveries and treatment options available and utilizing multidisciplinary approaches. Dr. Pan's research interests include finding indicators and tests for early detection of cancer, especially in the high-risk population. Dr. Pan has numerous publications in peer-reviewed journals, and has served as an ad hoc reviewer for the journal Cancer. Dr. Pan is a diplomat of American Board of Internal Medicine, and is an active member in many professional societies and charity organizations.


  • Medical School:
    University of Vermont - Burlington, VT - 2008
  • Internship:
    University of California - Irvine - Orange, CA - 2009
  • Residency:
    University of California - Irvine - Orange, CA - 2011
  • Fellowship:
    University of California - Irvine - Orange, CA - 2014
  • Board Certified in Hematology
  • Board Certified in Internal Medicine
  • Board Certified in Oncology - Medical


  • American Medical Association

Areas of Interest

  • Benign Hematology
  • Cancer Detection
  • Chemotherapy
  • Medical Oncology