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Joanna Tan, MD
Practice closed to new patients.

Joanna Tan, MD

(714) 577-6680
Primary Specialties
  • Family Medicine
    (Board Certified)
Medical Groups & Affiliations
  • St. Jude Heritage Medical Group

Primary Office

4300 Rose Dr.
Suite Q
Yorba Linda, CA 92886
(714) 577-6680
(714) 579-6831
Fri 8 a.m. - 4:30 p.m.
Web Page:
Recommend this Physician
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4.9 out of 5 (176 Ratings | 44 Comments)


Dr. Joanna Tan is superior. I have been seeing her since I was 19 years old. I am 55 now. I have always maintained a PPO health plan as a self-insured family to be in the care of St. Jude Medical Group.
I have had as primary care dr for 5 years, I am never comfortable with her, but if I ask for a change my wait time to see a new dr is over 3 months. she is well aware I was prescribed eterze for breast cancer 5 years. yet she NEVER TOOK THE TIME TO FIND OUT ABOUT DIDE RFFECTS OF THIS MED! she blamed me for anxiety, she also said I had clinical depression, I completely did agree, both are side effects of leterozole, she has been very cruel about ambien and Xanax to help me dealing with things that having stage 3 breast cancer, mastectomy, chemo and radiation. I shouldn't have sleeping programs or anxiety!
Waiting time of seeing the Dr was way too long. Every time I saw her, I had to wait 1hour.
I would always and forever have *Dr. Joanna Tan as my provider. She is everything a person would want in a doctor.
The only complaint is wait time.
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Physician Bio

There is nothing more important to me than the health and safety of your children. As a strong advocate of vaccinations, I believe that ensuring the children who visit our office are fully vaccinated is the single most important thing I can do to keep your children and your community safe. If you choose not to fully vaccinate your child, another physician may be a better fit for your family. If you have questions or would like more information on vaccinations, call our office at (714) 577-6658.


  • Medical School:
    Tufts University School of Medicine - Boston, MA
  • Internship:
    St. Michael's Hospital - Toronto, Canada
  • Residency:
    St. Michael's Hospital - Toronto, Canada
  • Board Certified in Family Medicine

Areas of Interest

  • Women's Health
  • Wellness

Insurance ID Numbers

Aetna: *67200
Blue Cross: *0RD050
Blue Shield: 00A369220
CIGNA: 201501
CIGNA Select: 3739414012
Health Net: 3205031875
Health Net Senior: 5149031875
SCAN: 866-32278
United Healthcare: *0183420046

*Provider ID is the same for both HMO and Medicare Advantage Plans

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